1. (n.) That which is supposed; hypothesis; conjecture; surmise\; opinion or belief without sufficient evidence.

2. (n.) 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.

allegory allusion apprehension apriorism arcane meaning assumption axiom belief coloration conceit concept conception conjecture connotation fancy guesswork hint hypothesis idea image imago implication implied meaning import impression inference innuendo intellectual object intimation ironic suggestion meaning memory-trace mental image mental impression metaphorical sense notion nuance observation occult meaning opinion overtone perception perhaps posit postulate postulation postulatum premise presumption presupposal presupposition proposal proposition recept reflection representation sentiment set of postulates speculation subsense subsidiary sense suggestion supposal suppose supposing surmise symbolism theory thesis thought tinge touch undercurrent undermeaning undertone working hypothesis