soundless, a. [unfathomable], abysmal; [silent], [noiseless], aphonic, surd.
sound-producing, a. sonorific.
soup, n. broth, bouillon, consommé, pottage, purée, bisk, bisque, julienne.
soup dish. tureen.
sour, a. acid, tart, acetose, acerbitous, [acrid]; [rancid], [musty]; [curdled], loppered; imbittered, [morose], misanthropic, [unamiable], [dour], cynical, [surly], [grum], austere, [crabbed], [cross].
sour, v. [curdle], acidify, lopper, [spoil], acidulate; imbitter, embitter.
source, n. [origin], [spring], [fountain], [rise].
sourness, n. acidity, tartness, acerbity, [sharpness]; rancidity, mustiness; asperity, [acrimony], moroseness, cynicism, [crossness].
souse, v. [pickle]; [douse], [immerse], [plunge], [submerge].
soutane, n. [cassock].