grumble vs kvetch

grumble and kvetch both are nouns.

Word	Noun	Adjective	Verb	Adverb
grumble	Yes	No	Yes	No
kvetch	Yes	No	Yes	No

As verbs, kvetch is a hypernym of grumble; that is, kvetch is a word with a broader meaning than grumble:

Other hypernyms of grumble include complain, kick, plain, quetch, sound off.

As verbs, kvetch is a hypernym of grumble; that is, kvetch is a word with a broader meaning than grumble:

Other hypernyms of grumble include complain, kick, plain, quetch, sound off.

grumble (noun)	kvetch (noun)
a complaint uttered in a low and indistinct tone	(Yiddish) a nagging complaint
a loud low dull continuous noise	(Yiddish) a constant complainer

grumble (verb)	kvetch (verb)
make complaining remarks or noises under one's breath	express complaints, discontent, displeasure, or unhappiness
show one's unhappiness or critical attitude
to utter or emit low dull rumbling sounds
make a low noise