howler vs laugh

howler and laugh both are nouns.

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

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

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

howler (noun)	laugh (noun)
a glaring blunder	the sound of laughing
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	a facial expression characteristic of a person laughing

howler (verb)	laugh (verb)
	produce laughter