Colt vs six-shooter

Colt and six-shooter both are nouns.

Word	Noun	Adjective	Verb	Adverb
Colt	Yes	No	No	No
six-shooter	Yes	No	No	No

As nouns, six-shooter is a hypernym of Colt; that is, six-shooter is a word with a broader meaning than Colt:

Colt: a kind of revolver
six-shooter: a pistol with a revolving cylinder (usually having six chambers for bullets)

Other hypernyms of Colt include revolver, six-gun.

Colt (noun)	six-shooter (noun)
a kind of revolver	a pistol with a revolving cylinder (usually having six chambers for bullets)