THESAURUS
Propound
advance, assert, bring before, bring forward, bring up, broach, commend to attention, introduce, launch, lay before, lay down, make a motion, moot, move, offer, offer a resolution, open up, pose, posit, postulate, predicate, prefer, proffer, propose, proposition, put, put forth, put forward, put it to, recommend, set before, set forth, start, submit, suggest
ROGET THESAURUS
Propound
Supposition
VB
suppose, conjecture, surmise, suspect, guess, divine, theorize, presume, presurmise, presuppose, assume, fancy, wis, take it, give a guess, speculate, believe, dare say, take it into one's head, take for granted, imagine, put forth, propound, propose, start, put a case, submit, move, make a motion, hazard out, throw out a suggestion, put forward a suggestion, put forward conjecture, allude to, suggest, hint, put it into one's head, suggest itself, run in the head, marvel if, wonder if, wonder whether.
Affirmation
VB
assert, make an assertion, have one's say, say, affirm, predicate, declare, state, protest, profess, put forth, put forward, advance, allege, propose, propound, enunciate, broach, set forth, hold out, maintain, contend, pronounce, pretend, depose, depone, aver, avow, avouch, asseverate, swear, make oath, take one's oath, make an affidavit, swear an affidavit, put in an affidavit, take one's Bible oath, kiss the book, vow, vitam impendere vero, swear till one is black in the face, swear till one is blue in the face, swear till all's blue, be sworn, call Heaven to witness, vouch, warrant, certify, assure, swear by bell book and candle, swear by, insist upon, take one's stand upon, emphasize, lay stress on, assert roundly, assert positively, lay down, lay down the law, raise one's voice, dogmatize, have the last word, rap out, repeat, reassert, reaffirm, announce, acknowledge, attest, adjure.