To sing or utter in falsetto.
A person who sings in falsetto.
The "false" (singing) voice in any human, usually airy and lacking a purity of vowels; created by utilizing the next highest vocal folds above those used for speech and normal range singing. It is commonly confused with the head voice register.
To utter in a grumbling fashion.
To complain; to murmur or mutter with discontent; to make ill-natured complaints in a low voice and a surly manner.
To make a low, growling or rumbling noise, like a hungry stomach or certain animals.
A low thundering, rumbling or growling sound.
The sound made by a hungry stomach.
A surly complaint.