line of verse vs line of poetry

line of verse and line of poetry both are nouns.

Word	Noun	Adjective	Verb	Adverb
line of verse	Yes	No	No	No
line of poetry	Yes	No	No	No

As nouns, line of verse and line of poetry are synonyms defined as:

line of verse (noun)	line of poetry (noun)
a single line of words in a poem	a single line of words in a poem