KEYBOARD

I. noun Date: 1819 a bank of keys on a musical instrument (as a piano) that usually consists of seven white and five raised black keys to the octave, an assemblage of systematically arranged keys by which a machine or device is operated, a board on which keys for locks are hung, a musical instrument that is played by means of a ~, II. verb Date: 1961 transitive verb to capture or set (as data or text) by means of a ~, intransitive verb to operate a machine (as for typesetting) by means of a ~, ~er noun