sabat-o = Saturday.
sabl-o = sand.
sag-o = arrow.
sagx-a = wise.
sak-o = sack, bag.
sal-o = salt.
salajr-o = salary, wages.
salat-o = salad.
salon-o = parlor, drawing-room.
salt-i = to jump, leap.
salut-i = to salute, greet.
sam-a = same.
san-a = healthy, well.
sang-o = blood.
sankt-a = sacred, holy.
sap-o = soap.
sarden-o = sardine.
sat-a = sated; malsata, hungry.
sauxc-o = sauce, gravy, dressing.
sav-i = to save; rescue.
sci-i = to know (117).
scienc-o = science.
se = (conj.), if (240).
sed = (conj.), but.
seg-i = to saw.
segx-o = chair.
sek-a = dry.
sekret-o = secret.
sekretari-o = secretary.
sekund-o = second (of time).
sekv-i = to follow.
sel-o = saddle.
sem-o = seed; --i, to sow.
semajn-o = week.
sen = (prep.), without (248).
senat-o = senate; --ano, senator.
senc-o = sense, meaning.
send-i = to send.
sent-i = to feel, perceive.
sep = (adj.), seven (136).
septembr-o = September.
sercx-i = to seek, hunt, look for.
serur-o = lock.
serv-i = to serve.
servic-o = course (of a meal).
ses = (adj.), six (136).
sever-a = severe, stern.
sezon-o = season.
si = (pronoun, reflexive), himself, herself, etc. (40, 44, 274).
sibl-i = to hiss, whistle (wind, etc.).
sid-i = to sit (239).
sigel-i = to seal.
sign-o = sign, trace, mark.
signif-i = to signify, mean.
silab-o = syllable.
silent-i = to be silent (239).
silk-o = silk.
simi-o = monkey.
simil-a = like, similar.
simpl-a = simple.
sinjor-o = gentleman, Mr. (163).
Sirakuz-o = Syracuse.
sitel-o = pail, bucket.
skatol-o = small box or case.
skiz-i = to sketch.
sklav-o = slave.
skot-o = Scot, Scotchman.
skrap-i = to scrape.
skrib-i = to write.
sku-i = (trans.), to shake.
skulpt-i = to carve, sculpture.
societ-o = society.
soif-i = to be thirsty.
sojl-o = threshold.
Sokrat-o = Socrates.
sol-a = alone, sole, only.
soldat-o = soldier.
solen-a = formal, solemn.
somer-o = summer.
son-i = (intrans.), to sound.
songx-i = to dream (in sleep).
sonor-i = (intrans.), to ring, sound; --ilo, bell.
sopir-i = to yearn, long, sigh.
sorb-i = to absorb; --papero, blotting-paper.
sorcx-o = witchcraft; ensorcxi, to bewitch; --isto, sorcerer.
sort-o = destiny, fate, lot.
sovagx-a = wild, savage.
spac-o = space.
spec-o = kind, sort, species.
special-a = special.
specimen-o = specimen, sample.
spegul-o = mirror.
spert-a = experienced, expert.
spes-o = speso (international unit of money, 284).
spez-o = clearing (financial); elspezi, to disburse, expend, spend;
enspezi, to take in, receive (funds).
spinac-o = spinach.
spir-i = to breathe; elspiri, to exhale.
spite = (prep.), in spite of.
sprit-a = witty.
staci-o = station (railway, boat, etc.).
stamp-i = to mark officially, stamp.
standard-o = standard, flag.
stan-o = tin (metal).
stang-o = pole.
star-i = to stand (239).
stat-o = state (of being), condition.
stel-o = star.
stenografi-o = shorthand, stenography.
stil-o = style.
stimul-i = to stimulate.
stomak-o = stomach.
strang-a = strange, peculiar.
strat-o = street.
strecx-i = (trans.), to stretch.
strek-i = to make a streak, or line; substreki, to underline;
surstreki, trastreki, to cross off, strike out.
stri-o = streak, stripe, band.
strik-o = strike (of labor).
stud-i = to study.
student-o = student (college, etc.).
stuf-i = (trans.), to stew.
stump-o = stump (of tree, etc.).
sub = (prep.), under, beneath (121, 160).
subit-a = sudden, abrupt.
substanc-o = substance.
sud-o = south.
sufer-i = to suffer, endure.
suficx-i = to suffice; --ega, abundant.
sufiks-o = suffix.
sufok-i = (trans.), to suffocate.
sugesti-i = to suggest.
suk-o = sap, juice (of plants, etc.); --a, succulent.
sukces-i = to succeed.
suker-o = sugar.
sulfur-o = sulphur.
sulk-o = furrow, wrinkle.
sum-o = sum, amount.
sun-o = sun.
sup-o = soup.
super = (prep.), above, over (159); --a, superior.
supersticx-o = superstition.
supoz-i = to suppose.
supr-e = (adv.), above; --a, upper, above; --ajxo, surface.
sur = (prep.), on, upon (160).
surd-a = deaf.
surpriz-i = to surprise.
surtut-o = overcoat.
suspekt-i = to suspect.
sved-o = Swede.
sven-i = to faint, swoon.
sving-i = (trans.), swing, brandish.
svis-o = Swiss.