frolic vs lark

frolic and lark both are nouns.

Word	Noun	Adjective	Verb	Adverb
frolic	Yes	No	Yes	No
lark	Yes	No	Yes	No

As verbs, frolic and lark are synonyms defined as:

Other synonyms of frolic include cavort, disport, frisk, gambol, lark about, rollick, romp, run around, skylark, sport.

frolic (noun)	lark (noun)
gay or light-hearted recreational activity for diversion or amusement	any carefree episode
	any of numerous predominantly Old World birds noted for their singing
	a songbird that lives mainly on the ground in open country; has streaky brown plumage
	North American songbirds having a yellow breast

frolic (verb)	lark (verb)
play boisterously	play boisterously