Soprano: the highest female voice (window-shattering like Mya or Ciara)

Tenor: male singer with a high vocal range (smooth and sexy like Roger from Rent)

Timbre: the quality of sound

Trachea: the tube that takes your air to and from your lungs; also called the windpipe

Unison: when all singers in a group sing the same notes at the same time

Vibrato: repeated fluctuation of pitch; also called "trilling"