| surnutri; –o | to feed up; overfeeding |
| surom; –a | superman; superhuman |
| surozo; –i | rashness; to act rashly |
| surpasi | to surpass |
| surpezo; –i | overweight; to –weigh |
| surplena | jam-full |
| surplue | moreover |
| surpluo | excess, surplus |
| surpopla; –at; –o | overpopulated; –ation |
| surpren; –i | surprise; to – |
| surpresyadi | to overestimate |
| surpresyel | extra-fare |
| surpresyi | to overcharge (prices) |
| surproduki; –azo | to over-produce; –uction |
| surprovi | to pass an examination (a test) |
| surrealismo; –ist(a) | surrealism; –ist |
| surrona | (anat.) suprarenal |
| Surs; –a | U. S. S. R.; of the Soviet Union, of U.S.S.R. |
| sursalto; –i | jump; to –, to give a – (a start) |
| sursel; –i | postponement, stay of proceedings, of execution; to postpone, to stay |
| sursensibla; –eso | supersensitive; –ness |
| sursona | supersonic |
| sursube | topsy-turvy, upside down |
| sursut | overshoe |
| surtax; –i | surtax, supertax; to – |
| surte | above all |
| surtenso | hypertension, high blood-pressure |
| surtrump; –i | overtrumping n, to overtrump |
| survarma; –i | superheated; to –heat |
| survelyo; –yi | supervising, control; to supervise, to control, to watch over |
| surviv; –i | survival; to survive |
| survodel | overhang |
| susheptibla; –eso | susceptible; –ility |
| sushiti | to arouse, to create, to stir up |
| suskrib(o); –i | subscription; to subscribe |
| susol | subsoil |
| suspek; –i; –ema | suspicion; to suspect; suspicious |
| suspendi; –o | to interrupt; –tion |
| suspens(o) | suspense n |
| sustenti; –o | to sustain; –ing n |
| susur; –i | susurration; to whisper |
| sut; –i | shoe; to –, to provide with –s, to put on –s |
| sutaso | saucer |
| sutel | dancing sandal; bootee, children's slipper |
| sutur; –i | (med.) suture; to – |
| suv(o); –i | sweat; to – |
| suxed; –i | succession; to succeed |
| suxedal | succession, transmission; – taxos death-duties |
| suxes; –i | success; to be –ful |
| Svedo; –a; –al; –el | Sweden; –dish; –dish lang; suede (leather) |
| svelta; –eso | slim; –ness |
| Swis; –a | Switzerland; Swiss |
| syeda | decent, seemly |
| syedi; –o | to be decent, correct; – a; decency |
| syedokono | good manners, knowledge of – –, of the world |
| syeka | subject to a |
| syeko; –i | subjection; to subdue |
| syen; –e | breast, bosom, womb; in the middle of, in the lap of |
| syerti; –er; –o; –azo | to set (precious stones); setter; setting n |
| syesto; –i | siesta; to have a – |
| syok | ploughshare |
| syom; –i | pack-saddle; to load, to put a – |
| syor (Sr) | Mister (Mr.), Sir |
| syuti | to suit, to match |