drop line vs dropline

drop line and dropline both are nouns.

Word	Noun	Adjective	Verb	Adverb
drop line	Yes	No	No	No
dropline	Yes	No	No	No

As nouns, drop line and dropline are synonyms defined as:

drop line and dropline: a headline with the top line flush left and succeeding lines indented to the right

Other synonyms of drop line include stagger head, staggered head, stephead, stepped line.

drop line (noun)	dropline (noun)
a headline with the top line flush left and succeeding lines indented to the right	a headline with the top line flush left and succeeding lines indented to the right