automatic rifle vs rifle

automatic rifle and rifle both are nouns.

Word	Noun	Adjective	Verb	Adverb
automatic rifle	Yes	No	No	No
rifle	Yes	No	Yes	No

As nouns, rifle is a hypernym of automatic rifle; that is, rifle is a word with a broader meaning than automatic rifle:

Other hypernyms of automatic rifle include machine gun.

automatic rifle (noun)	rifle (noun)
self-loading rifle capable of automatic fire	a shoulder firearm with a long barrel and a rifled bore

automatic rifle (verb)	rifle (verb)
	go through in search of something; search through someone's belongings in an unauthorized way
	steal goods; take as spoils