What does aria mean?
The definition of aria
Etym: [It., fr. L. aÃ«r. See Air.] (Mus.)
An air or song; a melody; a tune.
Note: The Italian term is now mostly used for the more elaborate accompanied melodies sung by a single voice, in operas, oratorios, cantatas, anthems, etc., and not so much for simple airs or tunes.