idea

idea noun abstraction, aim, appraisal, apprehension, assessment, belief, calculation, cogitatio, conceit, concept, conception, conjecture, conviction, doctrine, dogma, estimate, estimation, evaluation, excogitation, fancy, guess, hypothesis, impression, inference, intent, intention, judgment, notion, object, opinion, percept, perception, persuasion, plan, point of view, presupposition, product of imagination, purpose, reflection, sentiment, supposition, surmise, suspicion, tenet, theory, thought, train of thought, valuation, view, viewpoint

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See also: apprehension, belief, clue, concept, connotation, end, feeling, hint, import, intent, intimation, meaning, notion, objective, opinion, perception, project, proposal, proposition, purpose, sense, substance, suggestion, tenor