verse form vs rondel

verse form and rondel both are nouns.

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

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

verse form: a composition written in metrical feet forming rhythmical lines
rondel: a French verse form of 10 or 13 lines running on two rhymes; the opening phrase is repeated as the refrain of the second and third stanzas

verse form (noun)	rondel (noun)
a composition written in metrical feet forming rhythmical lines	a French verse form of 10 or 13 lines running on two rhymes; the opening phrase is repeated as the refrain of the second and third stanzas