n. & v.
n. 1 a statement or assertion. 2 a scheme proposed; a proposal. 3 Logic a statement consisting of subject and predicate that is subject to proof or disproof. 4 colloq. a problem, opponent, prospect, etc. that is to be dealt with (a difficult proposition). 5 Math. a formal statement of a theorem or problem, often including the demonstration. 6 a an enterprise etc. with regard to its likelihood of commercial etc. success. b a person regarded similarly. 7 colloq. a sexual proposal.
v.tr. colloq. make a proposal (esp. of sexual intercourse) to (he propositioned her). not a proposition unlikely to succeed. propositional adj.
[ ME f. OF proposition or L propositio (as PROPOUND) ]