cavalry sword vs sword

cavalry sword and sword both are nouns.

Word	Noun	Adjective	Verb	Adverb
cavalry sword	Yes	No	No	No
sword	Yes	No	No	No

As nouns, sword is a hypernym of cavalry sword; that is, sword is a word with a broader meaning than cavalry sword:

cavalry sword: a stout sword with a curved blade and thick back
sword: a cutting or thrusting weapon that has a long metal blade and a hilt with a hand guard

Other hypernyms of cavalry sword include blade, brand, steel.

cavalry sword (noun)	sword (noun)
a stout sword with a curved blade and thick back	a cutting or thrusting weapon that has a long metal blade and a hilt with a hand guard