The definition of thought is the act of thinking, or the outcome of mental activity.
(noun)Thought is the past tense of the word think which means to conceive in the mind.
(verb)An example of thought is a lesson that a teacher imagined would work before she put it into play.
See thought in Webster's New World College Dictionary
noun
Origin: ME thouht < OE thoht < PGmc *thanht, pret. of *thankjan (> OE thencan: see think)
transitive verb, intransitive verb
See thought in American Heritage Dictionary 4
verb
Origin:
Origin: Middle English
Origin: , from Old English gethōht, thōht; see tong- in Indo-European roots
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