
Complain
Express Discontent
Use 'complain' to express unhappiness or dissatisfaction with a service or situation.

She complained about the cold room at the hotel.
Casual Expression
'Complain' is casual, suitable for everyday conversation when discussing minor annoyances.

He always complains about the morning traffic.
Polite Complaints
To be polite, soften your complaint with phrases like 'I’m sorry to complain, but...'.

I’m sorry to complain, but this coffee is cold.
Compare with
BemoanGrievanceGrumbleLamentMoanMutterObjectProtestWhine
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