The Collaborative International Dictionary of English v.0.48:

Propound \Pro*pound"\, v. t. [imp. & p. p. Propounded; p. pr.
   & vb. n. Propounding.] [From earlier propone, L. proponere,
   propositum, to set forth, propose, propound; pro for, before
   + ponere to put. See Position, and cf. Provost.]
   1. To offer for consideration; to exhibit; to propose; as, to
      propound a question; to propound an argument. --Shak.
      [1913 Webster]

            And darest thou to the Son of God propound
            To worship thee, accursed?            --Milton.
      [1913 Webster]

            It is strange folly to set ourselves no mark, to
            propound no end, in the hearing of the gospel.
                                                  --Coleridge.
      [1913 Webster]

   2. (Eccl.) To propose or name as a candidate for admission to
      communion with a church.
      [1913 Webster]

WordNet (r) 3.0 (2006):

propound
    v 1: put forward, as of an idea

Moby Thesaurus II by Grady Ward, 1.0:

35 Moby Thesaurus words for "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