answer for vs declare

answer for and declare both are verbs.

Word	Noun	Adjective	Verb	Adverb
answer for	No	No	Yes	No
declare	No	No	Yes	No

As verbs, declare is a hypernym of answer for; that is, declare is a word with a broader meaning than answer for:

answer for (verb)	declare (verb)
furnish a justifying analysis or explanation	state emphatically and authoritatively
	state firmly
	make a declaration (of dutiable goods) to a customs official
	declare to be
	announce publicly or officially
	proclaim one's support, sympathy, or opinion for or against
	designate (a trump suit or no-trump) with the final bid of a hand
	authorize payments of