counsel vs talk over

counsel is a noun but talk over is not a noun.

Word	Noun	Adjective	Verb	Adverb
counsel	Yes	No	Yes	No
talk over	No	No	Yes	No

As verbs, talk over is a hypernym of counsel; that is, talk over is a word with a broader meaning than counsel:

counsel: give advice to
talk over: speak with others about (something); talk (something) over in detail; have a discussion

Other hypernyms of counsel include discuss, hash out.

counsel (noun)	talk over (noun)
something that provides direction or advice as to a decision or course of action
a lawyer who pleads cases in court

counsel (verb)	talk over (verb)
give advice to	speak with others about (something); talk (something) over in detail; have a discussion