verse form vs lament

verse form and lament both are nouns.

Word	Noun	Adjective	Verb	Adverb
verse form	Yes	No	No	No
lament	Yes	No	Yes	No

As nouns, lament is a hyponym of verse form; that is, lament is a word with a more specific, narrower meaning than verse form:

verse form (noun)	lament (noun)
a composition written in metrical feet forming rhythmical lines	a mournful poem; a lament for the dead
	a song or hymn of mourning composed or performed as a memorial to a dead person
	a cry of sorrow and grief

verse form (verb)	lament (verb)
	regret strongly
	express grief verbally