lecture vs pick apart

lecture is a noun but pick apart is not a noun.

Word	Noun	Adjective	Verb	Adverb
lecture	Yes	No	Yes	No
pick apart	No	No	Yes	No

As verbs, pick apart is a hypernym of lecture; that is, pick apart is a word with a broader meaning than lecture:

lecture: censure severely or angrily
pick apart: find fault with; express criticism of; point out real or perceived flaws

Other hypernyms of lecture include criticise, criticize, knock.

lecture (noun)	pick apart (noun)
teaching by giving a discourse on some subject (typically to a class)
a speech that is open to the public
a lengthy rebuke

lecture (verb)	pick apart (verb)
censure severely or angrily	find fault with; express criticism of; point out real or perceived flaws
deliver a lecture or talk