headlinese vs expressive style

headlinese and expressive style both are nouns.

Word	Noun	Adjective	Verb	Adverb
headlinese	Yes	No	No	No
expressive style	Yes	No	No	No

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

headlinese: using the abbreviated style of headline writers
expressive style: a way of expressing something (in language or art or music etc.) that is characteristic of a particular person or group of people or period

Other hypernyms of headlinese include style.

headlinese (noun)	expressive style (noun)
using the abbreviated style of headline writers	a way of expressing something (in language or art or music etc.) that is characteristic of a particular person or group of people or period