clavier vs keyboard

clavier and keyboard both are nouns.

Word	Noun	Adjective	Verb	Adverb
clavier	Yes	No	No	No
keyboard	Yes	No	No	No

As nouns, keyboard is a hypernym of clavier; that is, keyboard is a word with a broader meaning than clavier:

clavier: a bank of keys on a musical instrument
keyboard: device consisting of a set of keys on a piano or organ or typewriter or typesetting machine or computer or the like

clavier (noun)	keyboard (noun)
a bank of keys on a musical instrument	holder consisting of an arrangement of hooks on which keys or locks can be hung
a stringed instrument that has a keyboard	device consisting of a set of keys on a piano or organ or typewriter or typesetting machine or computer or the like