keen vs dirge

keen and dirge both are nouns.

Word	Noun	Adjective	Verb	Adverb
keen	Yes	Yes	Yes	No
dirge	Yes	No	No	No

As nouns, dirge is a hypernym of keen; that is, dirge is a word with a broader meaning than keen:

keen: a funeral lament sung with loud wailing
dirge: a song or hymn of mourning composed or performed as a memorial to a dead person

Other hypernyms of keen include coronach, lament, requiem, threnody.

keen (noun)	dirge (noun)
a funeral lament sung with loud wailing	a song or hymn of mourning composed or performed as a memorial to a dead person

keen (adjective)	dirge (adjective)
excellent
intense or sharp
having or demonstrating ability to recognize or draw fine distinctions
having a sharp cutting edge or point
painful as if caused by a sharp instrument

keen (verb)	dirge (verb)
express grief verbally