shift key vs typewriter keyboard

shift key and typewriter keyboard both are nouns.

Word	Noun	Adjective	Verb	Adverb
shift key	Yes	No	No	No
typewriter keyboard	Yes	No	No	No

shift key (noun)	typewriter keyboard (noun)
the key on the typewriter keyboard that shifts from lower-case letters to upper-case letters	a keyboard for manually entering characters to be printed