dropline vs newspaper headline

dropline and newspaper headline both are nouns.

Word	Noun	Adjective	Verb	Adverb
dropline	Yes	No	No	No
newspaper headline	Yes	No	No	No

As nouns, newspaper headline is a hypernym of dropline; that is, newspaper headline is a word with a broader meaning than dropline:

dropline: a headline with the top line flush left and succeeding lines indented to the right
newspaper headline: the heading or caption of a newspaper article

Other hypernyms of dropline include headline.

dropline (noun)	newspaper headline (noun)
a headline with the top line flush left and succeeding lines indented to the right	the heading or caption of a newspaper article