definition of
proposition

[1] #1 proposition n. (logic) a statement that affirms or denies something and is either true or false. wn

[2] #2 proposition n. [suggestion, proffer] a proposal offered for acceptance or rejection; "it was a suggestion we couldn't refuse". wn

[3] #3 proposition v. suggest sex to; "She was propositioned by a stranger at the party". wn

[4] #4 proposition n. an offer for a private bargain (especially a request for sexual favors). wn

[5] #5 proposition n. [proposal] the act of making a proposal; "they listened to her proposal". wn