lambaste vs lecture

lambaste is not a noun while lecture is a noun.

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

As verbs, lambaste and lecture are synonyms defined as:

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

lambaste (verb)	lecture (verb)
censure severely or angrily	censure severely or angrily
beat with a cane	deliver a lecture or talk