v. 25B6; verb
I suppose he's used to this : ASSUME, presume, expect, dare say, take it (as read); believe, think, fancy, suspect, sense, trust; guess, surmise, reckon, conjecture, deduce, infer, gather; formal opine.
suppose you had a spacecraft : ASSUME, imagine, (let's) say; hypothesize, theorize, speculate.
the theory supposes rational players : REQUIRE, presuppose, imply, assume; call for, need.