Synonyms for Proposal:

n.

bridal shower, bride, bachelor party, bachelorette party, bridal, betrothed, best man, banns, bridal party. overture, offer, betrothal, engagement. submission. bid, tender. appeal (noun)
submission.
communication (noun)
proposition.
course of action (noun)
scheme.
feeler (noun)
prospectus.
intention (noun)
schedule, intention, strategy, agenda, forecast, idea, expectation, will, calculation, forethought, scenario, plan, procedure, goal, ambition, object, scheme, consideration, choice, policy, approach, wish, endeavor, prospectus, aim.
motion (noun)
motion.
offer (noun)
overture, nomination, motion, recommendation, offer, bid.
plan (noun)
outline, program.
proposal (noun)
proposition, proposal of marriage, marriage offer, marriage proposal.
suggestion, presentation for action (noun)
scenario, outline, idea, scheme, motion, offer, tender, program, overture, recommendation, bid, proposition, plan.

v.

naming (verb)
nomination.

Other synonyms:

bid, recommendation. motion. submission. Other relevant words:
proposal of marriage, marriage offer, submission, offer, program, overture, motion, bid, outline, tender, marriage proposal, nomination, recommendation, proposition, engagement.