answer vs function

answer and function both are nouns.

Word	Noun	Adjective	Verb	Adverb
answer	Yes	No	Yes	No
function	Yes	No	Yes	No

As verbs, function is a hyponym of answer; that is, function is a word with a more specific, narrower meaning than answer:

Other hyponyms of answer include bridge over, keep going, tide over, go a long way, serve, measure up, qualify, go around.

answer (noun)	function (noun)
a nonverbal reaction	the actions and activities assigned to or required or expected of a person or group
the speech act of replying to a question	what something is used for
a statement (either spoken or written) that is made to reply to a question or request or criticism or accusation	a set sequence of steps, part of larger computer program
a statement that solves a problem or explains how to solve the problem	a formal or official social gathering or ceremony of people
the principal pleading by the defendant in response to plaintiff's complaint; in criminal law it consists of the defendant's plea of `guilty' or `not guilty' (or nolo contendere); in civil law it must contain denials of all allegations in the plaintiff's complaint that the defendant hopes to controvert and it can contain affirmative defenses or counterclaims	a formal or official social gathering or ceremony
	(mathematics) a mathematical relation such that each element of a given set (the domain of the function) is associated with an element of another set (the range of the function)
	a relation such that one thing is dependent on another

answer (verb)	function (verb)
give the correct answer or solution to	perform duties attached to a particular office or place or function
respond to a signal	perform as expected when applied
understand the meaning of	serve a purpose, role, or function
react to a stimulus or command
react verbally
give a defence or refutation of (a charge) or in (an argument)
be satisfactory for; meet the requirements of or serve the purpose of
match or correspond
be liable or accountable
be sufficient; be adequate, either in quality or quantity