supposition Meaning, Definition & Usage

  1. noun a message expressing an opinion based on incomplete evidence
    guess; conjecture; surmisal; hypothesis; speculation; surmise.
  2. noun a hypothesis that is taken for granted
    supposal; assumption.
    • any society is built upon certain assumptions
  3. noun the cognitive process of supposing
    supposal.

WordNet

Sup`po*si"tion noun
Etymology
F. supposition, L. suppositio a placing under, a substitution, fr. supponere, suppositium, to put under, to substitute. The word has the meaning corresponding to suppose. See Sub-, and Position.
Definitions
  1. The act of supposing, laying down, imagining, or considering as true or existing, what is known not to be true, or what is not proved.
  2. That which is supposed; hypothesis; conjecture; surmise; opinion or belief without sufficient evidence.
    This is only an infallibility upon supposition that if a thing be true, it is imposible to be false. Tillotson.
    He means are in supposition. Shak.

Webster 1913