seriousness, n. gravity. Antonyms: [levity], frivolity, [triviality].
sermon, n. homily, exhortation ([religious]), [discourse]. Associated words: homiletics, homiletic, homilist.
serpent, n. [snake], reptile, ophidian; basilisk, [cockatrice], amphisbæna. Associated words: ophiology, ophiolatry, ophiophagous, ophiography, herpetology, ophidian, ophiologic, ophiomorphous, herpetologist, herpetotomy, herpetotomist, ophiologist, ophiomancy, echidna, echidnine, [fang], uræus, serpentry, reptilian, anguiform, anguine.
serpentine, a. serpentlike, [subtle], sinuous, [winding], zigzag, tortuous.
servant, n. [dependent], subaltern, subordinate, [helper], servitor, [attendant], retainer; [domestic], [maid], [menial], [drudge], valet, [flunky], [groom], coistril, [lackey], [underling], fag, coolie, butler, factotum, [orderly], soubrette, equerry.
serve, v. [attend], wait upon; [promote], [advance], contribute, conduce to; subserve; [treat], [requite]; [satisfy], suffice, [content], [answer], [do]; [deal], [distribute].
service, n. [labor], employment, [office], [duty], [business], [function], [ministry]; [ritual], [ceremony], [rite]; [advantage], [benefit], avail, [use], [utility]; [homage], obeisance.
servile, a. [slavish], [abject], [cringing], [groveling], [obsequious]; [dependent], enslaved.
servitude, n. [bondage], [enslavement].
set, v. [place], put, [fix], [establish], locate, [station]; adjust, regulate, [adapt]; [oppose], [obstruct]; [appoint], [assign].