curtain lecture vs lecture

curtain lecture and lecture both are nouns.

Word	Noun	Adjective	Verb	Adverb
curtain lecture	Yes	No	No	No
lecture	Yes	No	Yes	No

As nouns, lecture is a hypernym of curtain lecture; that is, lecture is a word with a broader meaning than curtain lecture:

Other hypernyms of curtain lecture include speech, talking to.

curtain lecture (noun)	lecture (noun)
a private lecture to a husband by his wife	teaching by giving a discourse on some subject (typically to a class)
	a speech that is open to the public
	a lengthy rebuke

curtain lecture (verb)	lecture (verb)
	censure severely or angrily
	deliver a lecture or talk