lunacy vs prank

lunacy and prank both are nouns.

Word	Noun	Adjective	Verb	Adverb
lunacy	Yes	No	No	No
prank	Yes	No	Yes	No

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

Other hyponyms of lunacy include meshugaas, mishegaas, mishegoss, buffoonery, clowning, frivolity, harlequinade, japery.

lunacy (noun)	prank (noun)
foolish or senseless behavior	a ludicrous or grotesque act done for fun and amusement
obsolete terms for legal insanity	acting like a clown or buffoon

lunacy (verb)	prank (verb)
	dress up showily
	dress or decorate showily or gaudily