howler vs jest

howler and jest both are nouns.

Word	Noun	Adjective	Verb	Adverb
howler	Yes	No	No	No
jest	Yes	No	Yes	No

As nouns, jest is a hypernym of howler; that is, jest is a word with a broader meaning than howler:

Other hypernyms of howler include gag, jape, joke, laugh.

howler (noun)	jest (noun)
a glaring blunder	activity characterized by good humor
monkey of tropical South American forests having a loud howling cry	a humorous anecdote or remark intended to provoke laughter
a joke that seems extremely funny

howler (verb)	jest (verb)
	act in a funny or teasing way
	tell a joke; speak humorously