Garand vs semiautomatic firearm

Garand and semiautomatic firearm both are nouns.

Word	Noun	Adjective	Verb	Adverb
Garand	Yes	No	No	No
semiautomatic firearm	Yes	No	No	No

As nouns, semiautomatic firearm is a hypernym of Garand; that is, semiautomatic firearm is a word with a broader meaning than Garand:

Garand: a semiautomatic rifle
semiautomatic firearm: an autoloader that fires only one shot at each pull of the trigger

Other hypernyms of Garand include rifle.

Garand (noun)	semiautomatic firearm (noun)
a semiautomatic rifle	an autoloader that fires only one shot at each pull of the trigger