| sa | his, her, one's |
| Sab; –a, –e | Saturday n; a, adv. |
| sabir; –e; –i | pidgin, jargon; in –; to talk – |
| sablel | (cook.) shortbread |
| sablit; –a | (med.)gravel; –elly |
| sablo; –i | sand; to – |
| sablobenko | bar (of sand) |
| sabloco | (of pebble) gravel |
| sabordi; –o | to scuttle; –ing n |
| sabot; –i | sabotage; to – |
| sabro; –i | sabre, sword; to sabre; –gluter sword-swallower |
| sacerdot; –a | priest; –ly, sacerdotal |
| sadika; –dismo | sadist(ic); –dism |
| saelte | on his side; on one's side; from – – |
| safir | sapphire |
| safran | saffron |
| saga; –o; –i | wise; wisdom; to behave wisely |
| sagusta; –e | of his (own) taste a; adv. |
| sagvir; –eyo | conciliation board member; conciliation board |
| sak; –et | bag, sack; small bag |
| sakajo; –i | plundering n; to plunder |
| sakarin | saccharin |
| sakflut | bagpipe |
| sakra; –i; –at | sacred, holy; to consecrate; –ed |
| sakrado | consecration |
| Sakrakor | Sacred Heart |
| sakrament | sacrament |
| sakrardor | ardour, inner – |
| sakraro; –arer; –arin | sacristy; sacristan; sacristine |
| sakri | to consecrate |
| sakrif; –i | sacrifice; to – |
| sakrilego; –a | sacrilege; –ious |
| sal; –a | salt; –ed |
| sala, salema | salty |
| salad; –uyo | salad; – bowl |
| salaqo | salted water, sea-water |
| salar(yo) | salary, wages; –un salaried man; –in – woman |
| salbo; –i; –a | (arch.) projection; to project, to stand out; projecting |
| saldo; –i | remnant, clearance; to sell off |
| saldos | remnants sale |
| salgusta | brackish |
| sali; –inil | to salt; salt-cellar |
| saliv; –a | saliva; –ary |
| salko | willow |
| salkrauto | sauerkraut |
| salmigon | salmagundi, ragout, hotchpotch |
| salmon | salmon |
| salmur | pickling brine |
| salon | room, drawing-room |
| salonel | boudoir |
| saloza | salty, briny |
| salsico | sausage |
| salsinil | sauce-boat |
| salso; –il | sauce; – spoon |
| saltel; –i | (cook.) saute; to toss, to fry |
| salten | sudden change of humour |
| salteti | to hop, to skip |
| salto; –i | jump; to – |
| saltul; –i | ricochet, rebound; to – |
| salubraeso | salubrious; –ity |
| salum; –io; –er | pork-meat; drysaltery, pork-butcher's shop; drysalter, pork-butcher |
| salut; –i | greeting; to greet |
| salvo- a; –i | safety; safe; to save |
| salvobelt | life-belt |
| salvobuo | life-buoy |
| salvoscaf | lifeboat |
| salvyo | (bot.) sage |
| sam-mode | in the same way |
| sam; –a | same a |
| samaja | of the same age a |
| samane | with, from his own hand |
| samaspa | looking likewise a |
| sambel | elder-tree |
| samcentra | concentric |
| same | likewise |
| sameleste | the best he can adv. |
| samelta; –e | of the same side; on the – |
| samidean; –ealist | co-idealist |
| samjena | of the same sort (nature) |
| samklasa | of the same class |
| samkolora | of the same colour |
| samkoryere | by the same mail |
| samlandan | countryman, fellow – |
| samnasyona | of the same nationality |
| samode | in his own way |
| samopini | to be of the same opinion |
| samorda | of the same order |
| samoriga | of same origin |
| sampeza | of the same weight |
| samplo | sample |
| sampresye | at the same price |
| samrasa | of the same race |
| samriliga; –an | coreligionist a, n |
| samsanga; –eso | consanguineous; –nity |
| samsorta | of the same sort |
| samspeca | of the same nature |
| samtempa; –e | of the same time; in the – – |
| samtipa | of the same type |
| samurba; –an | of the same city; fellow-citizen |
| samye | in the same place |
| samyes | the same time |
| san | health (also: Holy, abr. of "santa") |
| san-aspa | looking healthy |
| sana; –ala | healthy; sanitary |
| sanaparel | sanitary object, –instrument |
| sanaro; sanatoryum | sanatorium |
| sanazo | recovery |
| sandal | (shoe) sandal |
| sandwic | sandwich |
| sang(o); –a | blood n; a |
| sangado; –i | (med.) blood-letting, bleeding; to bleed |
| sangema; sangoza | sanguineous, bloody; sanguinary, bloody |
| sanglot; –i | sob; to – |
| sangofluo | bloodshed |
| sangopren | blood-taking |
| sangtransfuzo | blood-transfusion |
| sangvasel | (anat.) blood-vessel |
| sani | to heal; to recover |
| sanigo; –i; –a | convalescence; to convalesce; –ent |
| Sanpatro | the Holy Father, the Pope |
| Sansakrament | Holy Sacrament |
| Sansanto | the Holy of Holies |
| sansasyon; –a | sensation; –al |
| Sansid; –a | Holy See; of the – – |
| Sanskribos; –ba | Scriptures, Holy Writ; of the – |
| Sanskrit; –a | Sanskrit, –ic |
| sanso; –i | sanction; to – |
| Sanspirto | Holy Ghost |
| sansuk | leech |
| santa | holy |
| santaro, santuyo | sanctuary |
| santin | holy woman |
| santo; –eso | holy man; holiness |
| santoca | smooth hypocrite |
| Sanvek | Holy Week |
| Sanvenso | Good Friday |
| sap(o); –i | knowledge, learning; to know |
| sapon; –i | soap; to – |
| sapor; –a | savour; tasty |
| sapori; –orayo | to savour, to enjoy; delicacy, dainty, tit-bit, daintiness |
| saprico! | Gosh!, by Jove! |
| sar | v present of si, to be |
| sarden | sardine |
| sardona | sardonic |
| sargo; –ado | coffin; to – (a corpse) |
| sarkasmo; –a | sarcasm; –astic |
| sarkli; –o | to hoe, to weed out; weeding n |
| sarkofago | sarcophagus |
| sarkom | (med.) sarcoma |
| sarment | bine; vine-shoot |
| sarno; –a | hinge; –ed |
| sarta; –o; –eso; –i | tender; –ness; to make (to become) tender |
| sarteli, sartoli | to fondle, to coddle, to pet |
| sas | one's pronoun, plur. |
| sat | v been, participle of si, to be |
| sata; –o; –i | sated; satiety, surfeit, repletion; to sate, to satisfy |
| saten; –a | satin; –y |
| satir; –a | satire; –ic(al) |
| satiryo | satyr |
| satisfo; –a; –i; –at | satisfaction; –factory; to –ify; –ied |
| satura; –eso | saturated; –ation |
| saturne | in his turn |
| savat; –er | shoe; shoemaker |
| savatist | bootmaker |
| savole | at one's own free will, spontaneously |
| se | oneself (compl.) |
| sebo; –a | tallow; fat, sebaceous |
| secedo | secession |
| sedisyon | sedition |
| sedo; –i; –ifa | calm; appeasement, to calm, to appease; sedative |
| seduk; –i | seduction; to seduce |
| sef; –a; –i | thirst; –y; to be –y |
| seglo; –pan | rye; – bread |
| segment | segment |
| segnal; –i | signal; to –, to notify |
| segnaltrupaso; –i | (mot.) signal-overrunning; to overrun a signal |
| segnel | badge, mark |
| segnifa | significant |
| segno; –i | sign, mark; to mark |
| segnoza | noteworthy, resounding |
| sego | pail, bucket |
| segrego; –i | segregation; to –ate |
| sek; –a; –i | dry; to – |
| sekant | secant n |
| seklala | (eccles.) secular |
| seklo; –a | century; secular, centuries old |
| seko; –al | dryness; drought |
| sekonda; –i | second n; to help, to support, to back up |
| sekra; –o | secret a; n |
| sekragent | secret agent |
| sekrel; –azo; –i | secretion; to secrete |
| sekrer; –in | secretary m; f |
| sekreso | secrecy |
| sekri | to keep secret |
| sekroyo | writing-desk, secretaire |
| sekto; –a; –ema | sect n; a; sectarian |
| sektor | sector |
| sekur; –i; –er | insurance; to –ure; assurance, to –ure; –er |
| sekurbelt | life-belt, safety belt |
| sekuremo | self-assurance |
| sekureso | security |
| sekuril | security device |
| Sekurpolisyo; –prem | Insurance policy; –premium |
| seldo; –i | saddle; to – |
| selekto; –i | selection; to select |
| selen | selenium |
| self; –a | self pronoun; a |
| selfamo | self-respect, pride |
| selfdefendo | self-defence |
| selfefat | self-made |
| selfpleka | self-explanatory |
| selko | pebble |
| selts; –aqo | soda; –water |
| selvaja; –un | wild; a – man |
| sem; –a | always; everlasting |
| semafor | semaphore, signal-station |
| semantik; –a | semantics, –tic |
| sembla; –o | resembling, alike; resemblance |
| seme | always, ever, for ever |
| semel | (shoe's) sole |
| semen; –i | seed; to sow |
| semenol | shoot, scion; offspring |
| semestro; –a | half-year; –ly |
| semeterna | sempiternal |
| semicirko; –a | semicircle; – circular |
| semideo | demi-god, demigod |
| semifinal; –ist | semi-final; –ist |
| semifrat | stepbrother |
| semilana | half-wool |
| semiligal | quarter-binding |
| semimal | small harm |
| semimezur | half-measure |
| semimondo; –a | demi-monde; n; a; outskirts of the society |
| semimonte | half-way up the hill |
| semimorta | more dead than alive |
| seminar; –ye; –arist | seminary; at, to the –; –ist |
| semipensyon; –er | half-board, partial board; –er |
| semiplas | half-fare |
| semipresye | at half price adv. |
| semiprop | joint property |
| semisor | stepsister |
| Semita | Semite, Semitic |
| semitemp; –a; –e | half-time n; a; adv. |
| semivege | half-way adv. |
| semivoke | in a subdued voice, in an undertone |
| semivole | willy-nilly |
| semivorte | on the uptake; kapi – to take the hint |
| semol | semolina |
| semplorer | eternal weeper |
| semtempe | always, eternally, for ever |
| sen; –a | without; devoid, unprovided |
| senabriga | homeless, roofless |
| senaktiva; –eso | inactive; –ity |
| senalma | inanimate, lifeless |
| senarda; –o | sluggish; –ness; nonchalant; –ance |
| senarma | unarmed |
| senarta | artless, unskilful |
| senasta; –e; –o | hasteless; –ly; –ness |
| senatenso; –a | inattention; –tive |
| senato; –or | senate; –or |
| senava | unprovided |
| senbarma | pitiless |
| senbaza | baseless |
| senbildaro | waste ground |
| senblage | no kidding!; seriously, really |
| sencerebra, sencervela | hare-brained, madcap |
| senceremone | informally, unceremoniously |
| sencese | unceasingly |
| sendanga | not dangerous, harmless |
| sendenga | having no money a, impecunious |
| sendenta | toothless; edentate |
| sendo; –i | sending n; to send |
| sendola | painless |
| sendoma | homeless |
| sendormo | sleeplessness |
| senduba; –e | unquestionable; no doubt |
| senduldo; –a | impatience; –ent |
| sendule | without delay |
| senecun | lazy-bones |
| seneduka | uneducated |
| senefekta; –eso | ineffective; –ness |
| seneltemo | impartiality |
| senempla | unemployed, jobless |
| senendo; –a; –e | infinite n; infinite; –ly |
| seneqilibro; –a | want of balance; unbalanced |
| senereda | disinherited |
| senerfara | inexperienced |
| senexira; –xado | no exit, no way out a, dead end |
| senfale | certainly, without fail |
| senfleka | stainless, immaculate |
| Senflekkoncep | Immaculate Conception |
| senfolgo | no true bill, nonsuit, no ground for prosecution |
| senfonda | groundless |
| senfrena | unbridled, unrestrained |
| senfronta; –o | jaunty, cheeky, impudent; effrontery, barefacedness |
| senfruta | unfruitful |
| sengruna; –unda | without reason a |
| seni | to lack of, to be without…; to be deprived of… |
| seninterompo | uninterruption |
| senior | senior |
| senkamba | unchanged |
| senkeda; –o | unquiet, restless; restlessness |
| senkeldube | without any doubt |
| senkelfale | undoubtedly, absolutely without fail, unfailingly |
| senkelfonda | without any ground, absolutely groundless |
| senkolora | colourless |
| senkondisa | unconditional |
| senkonfort; –a | uncomfortability; –table |
| senkonsho; –a | unconsciousness; unconscious |
| senkonsisto; –a | inconsistency, lack of consistence; lacking in – a |
| senkontredice | unquestionably |
| senkora | heartless |
| senkredo; –a | unbelief; –ieving a |
| senkulpo; –a | guiltlessness; guiltless |
| senlasa; –e | untiring; –ly |
| senletra | illiterate |
| senlimita | unlimited |
| senlukra; –oskop | non-profit; – – aim |
| senlukroskopsocado | non-profit association |
| sennuba; –e | cloudless a, adv. |
| sennuma | innumerable, numberless |
| senodora | odourless, inodorous |
| senokup; –a | unemployment; jobless, unemployed |
| senonta | shameless, barefaced |
| senpatria | stateless (person) |
| senpeka; –e | sinless; –ness; impeccable; –ility |
| senpekuna | unpecunious, without money |
| senpenta; –o | impenitent; –ence, unrepentance |
| senplue | that is all, without further ado |
| senposo; –a | powerlessness; powerless |
| senprica | unprecedented |
| senrevera; –o | irreverent; –ence |
| senriflekto | thoughtlessness |
| senrimel | blank verse |
| senrisolva; –o | irresolute; –ution |
| senritma; –o; –eso | arrhythmic; –mia; rhythmless |
| senruma; –e | without noise a. adv. |
| sensa | sensible, level-headed |
| sensado | sensation, impression, feeling |
| sensala | not salted |
| sensap; –e | ignorance; unknown to…, without the knowledge of., |
| sensegnifa | insignificant, unimportant |
| sensensa | senseless |
| senshendala | without issue (children) |
| sensibla; –eso | sensible; –ibility |
| senskopa | aimless |
| senso | sense |
| sensopla; –o | breathless; –ness; out of breath |
| senspero; –a | hopelessness; hopeless |
| sensuala; –eso | sensual; –ity |
| sent (o); –a | feeling n, sentiment; –mental |
| sentenso | decision, sentence |
| sentensyo | maxim, apophthegm |
| senti | to feel |
| sentim(o); –a | intrepidity; –pid |
| sentreve | relentlessly, unceasingly |
| sentrump | no trump (cards) |
| senvala | worthless, of no value |
| senverko; –a | joblessness; jobless, out-of-work, unemployed |
| senvika | of no importance |
| senvika | unimportant, of no importance |
| senviva | lifeless |
| senvoka | voiceless |
| senzorgo; –a | unconcern n; –ed, carefree, thoughtless |
| seo | being n |
| sep; –a | seven; –th |
| sepal | sepal |
| separ; –i | separation; to –ate |
| sepek | seven hundred |
| sepis | seventy |
| sepso; –a | septicity; septic |
| Septem(bro); –bra; –bre | September; of, in – |
| septicemio | (med.) septicaemia |
| sepulkro; –a | sepulchre; –al |
| sepyo; –a | cuttlefish; (colour) sepia |
| seqestro; –er; –i | sequestration; –ator, assignee; to –ester |
| ser; –a | evening n; a |
| serado | evening, evening party |
| seraf; –en | seraph |
| sere | in the evening adv. |
| serena; –eso | cloudless, serene; serenity |
| serenad; –i | serenade; to – |
| sergent | sergeant |
| serio | serge, twill |
| serio; –ia; –ie | series; in – a, adv. |
| serki; –azo | to clench, to shake, to squeeze; –ing n |
| serlo | glass-house, greenhouse |
| serlon | (agric.) big glass-house, glasshouse culture |
| sermon; –i; –ist | sermon; to –ize; –izer |
| serpo | serpent, snake |
| serso; –a | (med.) serosity; serous |
| serta; –un; –e | some, certain; a certain man; in a certain way |
| sertmomente | at a certain moment |
| serum; –a | serum n; a |
| servi | to preserve, to keep |
| servo | conservation, preservation |
| serya; –ye | serious; –ly |
| sesyon | session |
| set | set (sport, cards, group); (pork's) bristle |
| seuide | sine die |
| sevadi; –ados | to rage, to act severely; maltreatments, atro cities |
| sevyo | sap |
| sex; –a; –eso | sex; –ual; –uality |
| sexapel | sex-appeal |
| sexema | sexy |
| sextant | sextant |
| sexyon | section |
| sfer; –a | sphere; –ical |
| sfido; –i | challenge; to – |
| sfigmografo | (med.) sphygmograph |
| sfilal; –i | unravelling, fraying n; to unravel, to fray |
| Sfinx; –a | Sphinx n; a |
| SGG (Sen Governa Garantio) | Without Guarantee of the Government |
| shaba | shabby |
| shaf; –a; –in | sheep; (cook.) mutton n; a; ewe |
| shafol | lamb |
| shafon | male sheep, ram |
| shagren; –i | grief, affliction; to grieve, to afflict |
| shak | every a |
| shakal | (zool.) jackal adv.; a |
| shakanyo; –ye; –ya | every year n; |
| shakida; –e | every day's; every day adv. |
| shakmatin | every morning |
| shakore | at any time, at any hour, at every hour |
| shakosyes | every other time |
| shaksaturne | in turn, by turns, each one in his turn |
| shakun | everybody |
| shakvek; –a | every week; –'s |
| shakye | in every place |
| shakyes | every time |
| shal; –i | duty; v shall |
| shalba | pale, pallid, faint |
| shalup | (naut.) launch, sloop |
| sham; –i | swarm; to – |
| Shampanyo; –ya | Champagne n; a; – champagne (wine) |
| shampo; –i | shampoo; to – |
| shapron; –i | chaperon; to – |
| sharad | charade |
| sharpel | scarf, fichu, bandana |
| sharpo | scarf, stole, sash |
| shat | v due (participle of shi, shall) |
| shaut; –i | din, rag, uproar; to – |
| she | at |
| shed; –i | shed, penthouse, hangar; to garage, to put into a hangar or garage |
| shef | (cook.) chef |
| shel | shell (also: at the) |
| shema; –ado; –eso | silly; –ness (action; nature) |
| shen; –a | stage, scene n; a, scenic |
| shenadi; –o; –er | to stage; staging; stage-manager, producer |
| shenal; –i | scene, fuss; to make a scene, to kick up a fuss |
| shenda | descending |
| shendal | descendant |
| shendibed | bedside-rug |
| shendo; –i | coming down, descent; to come down, to descend |
| shenso; –a | science; scientific |
| sheptika; –ikismo | sceptic(al); –icism |
| sheptro | sceptre |
| shevyot | cheviot (fabric) |
| shi | v shall |
| shiatit; –tik | (med.) sciatica; (anat.) sciatic nerve |
| shik(a) | smart |
| shiktip | a fine chap, a decent –, a good sort |
| shild(o) | sign, – board |
| shindi; –o | to split; –itting, scission |
| shinshil | (zool.) chinchilla |
| shinyon | chignon, bun |
| ship-candler | ship-chandler |
| ship; –a; –e; –i | ship n; a; on –, by –; to go by – |
| shipel | barge, lighter |
| shipol | small ferry |
| shipos–pont | pontoon-bridge |
| shir | v past tense of shi, shall |
| shira; –eso | dear, expensive, costly; costliness |
| shiri; –azo | to raise; rise, raising n (of prices) |
| shirmo; –i | protection; to –ect; shelter; to – |
| shishit; –a; –i | fuss, frills; fussy, –ing a; to make – |
| shismo; –a | schism; –atic |
| shist(o); –a | schist, shale; schistous |
| shok; –i; –ifa | shock; to –; –ing |
| shol | shawl |
| shom; –i; –er | unemployment; to abstain from work, to be unemployed; unemployed worker |
| shop; –on | shop; store |
| shopado; –i | shopping, errand; to go, to run errands |
| shor | v future of shi, shall |
| short | shorts |
| shugi; –azo | to wipe, to – away, to mop; wiping n |
| shugil; –iman | towel, hand – |
| shupi; –o; –azo | to waste; –ing n |
| shur | v conditional of shi, shall |
| si | to be |
| sibla; –e; –eso | possible, –y. –ility; |
| sibla! | maybe! |
| sid | seat, office |
| sidado; –i | sitting, session; to take place (of a sitting) |
| sidema; –o | sedentary; –iness |
| sidergi; –at | to stupefy; –ied |
| siderurgio; –urga | siderurgy; –ic(al) |
| sidi | to sit, to seat, to – down |
| sidil; long- | chair; lounge –, chaiselongue |
| sidoyo | bench, seat |
| sifilit; –a | (med.) syphilis; –litic |
| siflo; –i; –il | whistling n; to whistle; whistle |
| sifon | siphon |
| sigar; –et | cigar; –ette |
| sigaretil | cigarette-holder |
| sigaretuyo | cigarette-case |
| siglo | sigla |
| signi; –o | to sign; signature |
| siji | to besiege |
| sijo; –stando | (mil.) siege; martial law regime |
| sil; –a; –e | silence; –ent; –ently |
| silab; –a (silbo; –a) | syllable; –abic |
| sildi; –o; –azo | to solder, to weld; solder, –ing, weld, –ing n |
| silex | silex |
| silgo; –i | seal; to – |
| silgot | sealing wax |
| sili | to be silent |
| silicato | silicate |
| silico; –a | (chem.) silica; –ceous |
| Silicoso | (med.)silicosis |
| silil | (mot.) silencer |
| silk(o); –a; –el | silk; –en; silkworm |
| silo | silence |
| silot; –i; –azo | silo; to –, to ensile; ensilage |
| silur; –i | torpedo; to – |
| silurior | torpedo-boat |
| sim; –a; –in | monkey n; a; she-monkey, female monkey |
| simbol; –a | symbol; –ic |
| simboli; –azo | to symbolize, –ation |
| simetra; –io | symmetrical, –etry |
| simila; –eso | similar; –ity, likeness |
| simonyo; –ya | simony; –oniac(al) |
| simpata; –i; –io | attractive, sympathetic; to –athize; –athy |
| simpla; –eso; –i | simple; –icity; to –ify; mere, bare |
| simul; –azo; –i | simulation; to –ate |
| simultana; –e; –eso | simultaneous; –ly; –ness |
| sin; –i | ash; to burn to ashes |
| sinadi; –o; –aro | to incinerate; –ation; crematorium |
| sinap; –i | (med.) sinapism; to make, to put a – |
| sincera; –e; –eso | sincere; –ly; –erity |
| sindik; –i; –at; –eyo; –eya | (assignee) syndic; to –ate; –ated; –ate; –al |
| sindrom | (med.) syndrome |
| sinekur | sinecure, soft job |
| sinel | (bot.) cineraria |
| sinfonio; –ona | symphony; –ic |
| singa | (gramm.) singular |
| singol | singleton |
| singula | single, unique |
| singulara | peculiar, strange, queer |
| sinil | ash-tray |
| sinistra; –o | sinister, fatal, ominous; accident, conflagration disaster |
| sinki | to sink |
| sinkop | (med., gramm.) syncope; –a syncopal; –i; –azo (mws.) to syncopate; –pation |
| sinkrona; –eso | synchronistic; –onisrn |
| Sinmirko | Ash-Wednesday |
| sinod; –a | (eccles.) synod; –al |
| sinonim; –a | synonym; –imous |
| sinopsio | synoptic board, synopsis, conspectus |
| sinov; –it | (anat.) synovia; (med.) synovitis |
| sintax; –a | syntax; –actic(al) |
| sintezo; –a | synthesis; –etic(al) |
| sintom; –a | symptom; –atic |
| sinua; –ado; –eso | sinuous; –osity |
| sinurno | cinerary urn |
| sinus | (anat.) sinus; math, sine |
| Sinyor | Lord |
| siplo; –i | chisel, graver; to engrave |
| sir | v past tense of si, to be |
| siringo | syringe |
| Siro (Sr) | Mister (Mr.), Sir |
| sirop; –a | syrup; –y |
| sirvama; –o | willing to help, obliging; willingness (readiness) to help |
| sirvan | serf, bondman |
| sirvel | service, set (of porcelain, etc.) |
| sirver; –in | servant m; f, maid-servant |
| sirveyo | attendance, service staff |
| sirvi | to serve |
| sirvila; –eso | servile; –ility |
| sirvin | bondwoman |
| sirvo | service |
| Sis (senlukroskop-socado) | non-profit association |
| sismo; – grafio | seism, earthquake; seismography |
| sistem; –a; –i | system; –atic; to –atize |
| sistol | (med.) systole |
| sit; –a | six; –th |
| sitek | six hundred |
| sitim | sixth (fraction) |
| sitis; –o | sixty; about –, the sixties |
| sitmes; –a | half-year; –ly |
| situi; –no | to situate; –ation |
| sizo; –a | season n; a, –al |
| skab; –i | setback; to fail, to miss, (US) to flunk; to miscarry |
| skabadi | to bar, to prevent, to hold in check |
| skabon; –i; –er | chess; to play –; – player |
| skabro; –a; –oza | risk, hazard; –ous; risky, scabrous |
| skabyo; –a | (med.) scabies, mange; scabby, mangy |
| skad(o); –i | date, term, maturity; to fall due |
| skadro; –on | squadron |
| skaf | (naut.)hull |
| skal | stairs, staircase |
| skalel | ladder |
| skalico; –i | (stair's) round, rung; (fig.) step; to space out, to spread out |
| skalop | (cook.) collop, escalope |
| skalpo; –i | scalp; to – |
| skalyo | scale, range |
| skambo; –i | exchange; to – |
| skamot; –azo; –i | juggling; to juggle |
| skampo; –s | scamp; –s; –i (it) |
| skandal; –a; –i | scandal; –ous; to –ize |
| skansi | to scan |
| skap(o); –i | escape n; v |
| skapla | dishevelled |
| skapol; –i | escapade; to make an – |
| skapon; –i | narrow escape; to have a – – |
| skapopot | (mot.) silencer |
| skapoveo | way of escape, safety way |
| skardo | splinter |
| skarfi; –o; –azo | to scarify; –ification |
| skarko | (med.)slough |
| skarla | scarlet |
| skarlatin | (med.) scarlatina, scarlet fever |
| skarmuco; –i | skirmish; to – |
| skarpo; –al; –a | slope; steep slope, escarpment; steep |
| skarsa; –eso | scarce; –ness, –ity |
| skarto; –i | waste material, cast-off –rubbish, scrap; to discard |
| skateni; –azo | to break loose; –ing loose n; to explode, –sion; to unleash |
| skaut; –a; –in | scout-boy n; a; girl-guide |
| skav(o); –i | digging, excavation; to dig, to excavate |
| skec | sketch |
| skedo; –i; –uyo | file; to –; card-index box, file-box |
| skeli; –uyo | to hide, to conceal; lurking-place, hiding-place |
| skelskel | hide-and-seek |
| skelto; –a | skeleton; –etal |
| skelun | stowaway |
| skermo; –i | fencing; to fence |
| ski; –io; –ii; –ier | ski; to –; –ier |
| skir; –azo; –i | tear; tearing, rending n; to tear, to rend, to lacerate |
| skirigorge | at the top of one's voice, screaming adv. |
| skis(o); –i | sketch, outline; to – |
| skivi | to shirk, to elude |
| sklavo; –in; –ado; –eso | slave m, f; –ery |
| skleri; –oso; –osa | (med.) to sclerose; sclerosis; –otic |
| skoconi; –er | to annoy, to bother, to give someone a pain in the neck; a pest, a bore |
| skodel | bowl, porringer |
| skol; –ye; –a; –er; –erin | school; at, to –; – a, scholastic; –boy; –girl |
| skolyoso | (med.) scoliosis |