Supposition

#514. Supposition. -- N. supposition, assumption, assumed position, postulation, condition, presupposition, hypothesis, blue sky hypothesis, postulate, postulatum[Lat], theory; thesis, theorem; data; proposition, position; proposal &c. (plan) 626; presumption &c. (belief) 484; divination.
• conjecture; guess, guesswork, speculation; rough guess, shot, shot in the dark [coll.]; conjecturality[obs]; surmise, suspicion, sneaking suspicion; estimate, approximation (nearness) 197.
• inkling, suggestion, hint, intimation, notion, impression; bare supposition, vague supposition, loose supposition, loose suggestion.
• association of ideas, (analogy) 514a; metonym[Gram], metonymy[Gram], simile (metaphor) 521.
• conceit, idea, thought; original idea, invention (imagination) 515.
• V. suppose, conjecture, surmise, suspect, guess, divine; theorize; presume, presurmise[obs], presuppose; assume, fancy, wis[obs], take it; give a guess, speculate, believe, dare say, take it into one's head, take for granted; imagine &c. 515.
• put forth; propound, propose; start, put a case, submit, move, make a motion; hazard out, throw out a suggestion, put forward a suggestion, put forward conjecture.
• allude to, suggest, hint, put it into one's head.
• suggest itself &c. (thought) 451; run in the head &c. (memory) 505; marvel if, wonder if, wonder whether.
• Adj. supposing &c. v.; given, mooted, postulatory[obs]; assumed &c. v.; supposititious, suppositive[obs], suppositious; gratuitous, speculative, conjectural, hypothetical, theoretical, academic, supposable, presumptive, putative; suppositional.
• suggestive, allusive.
• Adv. if, if so be; an; on the supposition &c. n.;ex hypothesi[Lat]; in the case, in the event of; quasi, as if, provided; perhaps &c. (by possibility) 470; for aught one knows.

This definition is from Roget's Thesaurus.
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