1. [syn: upright, upright piano]
The Collaborative International Dictionary of English v.0.48:
Piano \Pi*an"o\, Pianoforte \Pi*an"o*for`te\, n. [It. piano soft
(fr. L. planus even, smooth; see Plain, a.) + It. forte
strong, fr. L. fortis (see Fort).] (Mus.)
A well-known musical instrument somewhat resembling the
harpsichord, and consisting of a series of wires of graduated
length, thickness, and tension, struck by hammers moved by
Dumb piano. See Digitorium.
Grand piano. See under Grand.
Square piano, one with a horizontal frame and an oblong
Upright piano, one with an upright frame and vertical
WordNet (r) 3.0 (2006):
n 1: a piano with a vertical sounding board [syn: upright,