1.Definition: a lengthy rebuke

"A good lecture was my father's idea of discipline", "The teacher gave him a talking to"

Related Noun(s):speech

Category: General

2.Definition: a speech that is open to the public

"He attended a lecture on telecommunications"

Related Noun(s):talk

Category: General

3.Definition: teaching by giving a discourse on some subject (typically to a class)

Category: General