call down vs lecture

call down is not a noun while lecture is a noun.

Word	Noun	Adjective	Verb	Adverb
call down	No	No	Yes	No
lecture	Yes	No	Yes	No

As verbs, call down and lecture are synonyms defined as:

call down (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

call down (verb)	lecture (verb)
censure severely or angrily	censure severely or angrily
summon into action or bring into existence, often as if by magic	deliver a lecture or talk