piano (pianos plural )
Pronounced [PH:p][PH:i][PH:G][PH:n][PH:o][PH:U] for meaning 1, and [PH:p][PH:i][PH:@][PH::][PH:n][PH:o][PH:U] for meaning 2.
1 n-var A piano is a large musical instrument with a row of black and white keys. When you press these keys with your fingers, little hammers hit wire strings inside the piano which vibrate to produce musical notes.
I taught myself how to play the piano...
2 adv A piece of music that is played piano is played quietly. (TECHNICAL)
grand piano (grand pianos plural )A grand piano is a large piano whose strings are set horizontally to the ground. Grand pianos are used especially for giving concerts and making recordings. n-count
player piano (player pianos plural )A player piano is a type of mechanical piano. When you press the pedals, air is forced through holes in a roll of paper to press the keys and play a tune.
(mainly AM) n-count
in BRIT, usually use pianola
upright piano (upright pianos plural )An upright piano is a piano in which the strings are arranged vertically, rather than horizontally as they are in a grand piano. n-count