How to Say "grumble" in Spanish
The Spanish word for “grumble” is “queja” — A2 level. This is a very common word in everyday Spanish.

Examples
Tengo una queja sobre la comida.
I have a complaint about the food.
El vecino presentó una queja por el ruido.
The neighbor filed a complaint about the noise.
No escuché su queja, estaba muy ocupado.
I didn't hear his complaint; I was very busy.
Filing a Complaint
To say 'to file/make a complaint,' Spanish commonly uses the verb 'poner' (to put/place) or 'presentar' (to present): 'Pusimos una queja.'
Using 'About'
When specifying what the complaint is 'about,' use the preposition 'sobre': 'una queja sobre el servicio' (a complaint about the service).
Confusing Noun and Verb
Mistake: “Using 'queja' when you mean 'to complain.'”
Correction: Remember 'queja' is the thing (the complaint), while 'quejarse' is the action (to complain). Example: 'Voy a quejarme' (I am going to complain), not 'Voy a queja.'
Related Translations
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