homework vs classwork

homework and classwork both are nouns.

Word	Noun	Adjective	Verb	Adverb
homework	Yes	No	No	No
classwork	Yes	No	No	No

As nouns, classwork is a hyponym of homework; that is, classwork is a word with a more specific, narrower meaning than homework:

Other hyponyms of homework include classroom project, prep, preparation, lesson.

homework (noun)	classwork (noun)
work, such as schoolwork or piecework, that is done at home	the part of a student's work that is done in the classroom