verse vs limerick

verse and limerick both are nouns.

Word	Noun	Adjective	Verb	Adverb
verse	Yes	No	Yes	No
limerick	Yes	No	No	No

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

verse: a piece of poetry
limerick: a humorous verse form of 5 anapestic lines with a rhyme scheme aabba

Other hyponyms of verse include clerihew, doggerel, doggerel verse, jingle.

verse (noun)	limerick (noun)
a piece of poetry	a humorous verse form of 5 anapestic lines with a rhyme scheme aabba
a line of metrical text
literature in metrical form

verse (verb)	limerick (verb)
familiarize through thorough study or experience
compose verses or put into verse