A set of keys used to operate a typewriter, computer etc.
A component of many instruments including the piano, organ, and harpsichord consisting of usually black and white keys that cause different tones to be produced when struck.
A device with keys of a musical keyboard, used to control electronic sound-producing devices which may be built into or separate from the keyboard device.
To type on a computer keyboard.
A pattern produced using such a utensil.
A two-ply master sheet for use with a mimeograph.
A thin sheet, either perforated or using some other technique, with which a pattern may be produced upon a surface; a utensil that contains a perforated sheet.
To print with a stencil.