a, o, b, d, e, k, n, p, r, i, y are letters that make 'piano keyboard'
keyboard, oar, PI, AN, ANO, pi, pia, ar, YB, key, Yb, piano, no, boa, boar, board, AR, IA, Key, Ar, No are words within 'piano keyboard'
1 possible definitions for 'piano keyboard'
Under this definition, piano keyboard is a noun and has the following properties:
fingerboard, clavier have the same meaning as 'piano keyboard'
'piano keyboard' can be a type of keyboard.
'piano keyboard' can be a part of accordion, squeeze box, pipe organ, pianoforte, forte-piano, piano accordion, organ, piano.