steampunk vs writing style

steampunk and writing style both are nouns.

Word	Noun	Adjective	Verb	Adverb
steampunk	Yes	No	No	No
writing style	Yes	No	No	No

As nouns, writing style is a hypernym of steampunk; that is, writing style is a word with a broader meaning than steampunk:

steampunk: A subgenre of speculative science fiction set in an anachronistic 19th century society.
writing style: a style of expressing yourself in writing

Other hypernyms of steampunk include genre, literary genre, punk, punk rocker.

steampunk (noun)	writing style (noun)
A subgenre of speculative science fiction set in an anachronistic 19th century society.	a style of expressing yourself in writing