'Keyboard' definitions:

Definition of 'keyboard'

(from WordNet)
noun
Device consisting of a set of keys on a piano or organ or typewriter or typesetting machine or computer or the like
noun
Holder consisting of an arrangement of hooks on which keys or locks can be hung

Definition of 'Keyboard'

From: GCIDE
  • Keyboard \Key"board`\, n. The whole arrangement, or one range, of the keys[3] of an organ, piano, typewriter, etc.; that part of a device containing the keys[3] used to operate it. [1913 Webster]

Synonyms of 'keyboard'

From: Moby Thesaurus