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 (something) with a hissing sound.
To call someone by hissing.
To condemn or express contempt (for someone or something) by hissing.
To make a hissing sound.
To whisper, especially angrily or urgently.
To emit or eject (something) with a hissing sound.
To move with a hissing sound.
A sibilant sound, such as that made by a snake or escaping steam; an unvoiced fricative.
An expression of disapproval made using such a sound.