work vs answer

work and answer both are nouns.

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

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

work: find the solution to (a problem or question) or understand the meaning of
answer: understand the meaning of

Other hyponyms of work include resolve, riddle, strike, guess, infer, break.

work (noun)	answer (noun)
activity directed toward making or doing something	a nonverbal reaction
the occupation for which you are paid	the speech act of replying to a question
a product produced or accomplished through the effort or activity or agency of a person or thing	a statement (either spoken or written) that is made to reply to a question or request or criticism or accusation
a place where work is done	a statement that solves a problem or explains how to solve the problem
the total output of a writer or artist (or a substantial part of it)	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
applying the mind to learning and understanding a subject (especially by reading)
(physics) a manifestation of energy; the transfer of energy from one physical system to another expressed as the product of a force and the distance through which it moves a body in the direction of that force

work (verb)	answer (verb)
give a workout to	give the correct answer or solution to
arrive at a certain condition through repeated motion	respond to a signal
go sour or spoil	understand the meaning of
cause to undergo fermentation	react to a stimulus or command
find the solution to (a problem or question) or understand the meaning of	react verbally
use or manipulate to one's advantage	give a defence or refutation of (a charge) or in (an argument)
to mix into a homogeneous mass	be satisfactory for; meet the requirements of or serve the purpose of
perform as expected when applied	match or correspond
move into or onto	be liable or accountable
shape, form, or improve a material	be sufficient; be adequate, either in quality or quantity
cause to happen or to occur as a consequence
prepare for crops
make something, usually for a specific function
gratify and charm, usually in order to influence
proceed along a path
move in an agitated manner
provoke or excite
be employed
cause to work
exert oneself by doing mental or physical work for a purpose or out of necessity; work
have an effect or outcome; often the one desired or expected
operate in a certain place, area, or specialty
proceed towards a goal or along a path or through an activity
have and exert influence or effect
operate in or through
cause to operate or function
behave in a certain way when handled