Definition of "Vocal" :
noun: a short musical composition with words
noun: music intended to be performed by one or more singers, usually with instrumental accompaniment
adjective: given to expressing yourself freely or insistently
"A vocal assembly."
adjective: full of the sound of voices
"A playground vocal with the shouts and laughter of children."
adjective: having or using the power to produce speech or sound
"Vocal organs."
adjective: relating to or designed for or using the singing voice
"Vocal technique."