vocals

Concise Oxford English Dictionary © 2008 Oxford University Press:
vocal/ˈvəʊkl/

▶adjective

• 1 relating to the human voice.

  ■ Anatomy used in the production of speech sounds.

• 2 expressing opinions or feelings freely or loudly.

• 3 (of music) consisting of or incorporating singing.

▶noun

• 1 (also vocals) a musical performance involving singing.

• 2 a part of a piece of music that is sung.

– derivatives
vocality noun,
vocally adverb.

– origin ME: from L. vocalis, from vox, voc- (see voice).