noun a complaint uttered in a low, indistinct tone
verb to complain or protest about something in a low, indistinct tone
In parenting, 'grumble' can be used to describe the act of complaining or expressing discontent in a low, muttering manner.
In psychology, 'grumble' can refer to a form of nonverbal communication expressing dissatisfaction or annoyance.
In linguistics, 'grumble' can be used to describe a type of speech sound made with a partially closed vocal tract, such as a voiced velar fricative.
In customer service, 'grumble' can refer to a customer expressing dissatisfaction or complaints in a low or murmuring tone.
In the study of animal behavior, 'grumble' can describe a low, rumbling sound made by certain animals as a form of communication or expression of discomfort.
In a professional setting, a writer may use the word 'grumble' to describe a character's discontent or dissatisfaction with a situation in a story or script.
A psychologist may use the term 'grumble' to refer to a client's expression of minor complaints or grievances during a therapy session.