"gripe" in the noun sense
1. gripe, kick, beef, bitch, squawk
informal terms for objecting
"I have a gripe about the service here"
"gripe" in the verb sense
1. gripe, bitch, grouse, crab, beef, squawk, bellyache, holler
"What was he hollering about?"
Source: WordNet® (An amazing lexical database of English)
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