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 make a groan.
To seemingly creak under the strain of being heavily laden.
A low, mournful sound uttered in pain or grief.
A low, guttural sound uttered in frustration, disapproval, or ecstasy.
A low creaking sound from applied pressure or weight.