Dynamics and vocal embellishments
A Capella - one or more singers performing without instrumental accompaniment
Cantabile - In a singing style
Capo - Head, the beginning
Coda - closing section appended to a movement or song
Dolce - sweetly
Falsetto - a weaker and more airy voice usually in the higher pitch ranges
Glissando - sliding quickly between 2 notes
Passagio - parts of a singing voice where register transitions occur
Rubato - slight speeding up or slowing down of the tempo of a piece at the discretion of the soloist
Tessitura - the most comfortable singing range of a singer
Vibrato - rapidly repeated slight pitch variation during a sustained note, to give a richer & more varied sound