proposal

n.

1. Offer

   overture, recommendation, proposition, offer, suggestion, bid, motion, nomination; see also suggestion 1.

2. Plan

   scheme, program, prospectus, project, proposition, plan, outline, design; see also plan 2.

3. An offer of marriage

   offer, overture, proposition, asking of one's hand, betrothal; see also engagement 2.

proposal refers to a plan, offer, etc. presented for acceptance or rejection the proposal for a decrease in taxes was approved; proposition specifically applies to a statement, theorem, etc., set forth for argument, demonstration, proof, etc. the proposition that all men are created equal, but it is also used similarly to proposal with reference to business dealings and the like