acrostic vs literary work

acrostic and literary work both are nouns.

Word	Noun	Adjective	Verb	Adverb
acrostic	Yes	No	No	No
literary work	Yes	No	No	No

As nouns, literary work is a hypernym of acrostic; that is, literary work is a word with a broader meaning than acrostic:

acrostic: verse in which certain letters such as the first in each line form a word or message
literary work: imaginative or creative writing

Other hypernyms of acrostic include literary composition.

acrostic (noun)	literary work (noun)
a puzzle where you fill a square grid with words reading the same down as across	imaginative or creative writing
verse in which certain letters such as the first in each line form a word or message