lecture - definition of lecture by The Free Dictionary

lec·ture (lĕk′chər) n. 1. An exposition of a given subject delivered before an audience or class, as for the purpose of instruction. 2. An earnest admonition or reproof; a reprimand. v. lec·tured, lec·tur·ing, lec·tures v.intr. To deliver a lecture or ser

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