vocal >> ˈvəʊk(ə)l
Definition: [adjective] relating to the human voice.
Example: non-linguistic vocal effects like laughs and sobs
Definition: [adjective] (of music) consisting of or incorporating singing.
Example: a four-part vocal composition
Definition: [adjective] expressing opinions or feelings freely or loudly.
Example: he was vocal in condemning the action
Definition: [noun] a part of a piece of music that is sung.
Example: a clear guitar backing topped with haunting vocals