sabre vs sword

sabre and sword both are nouns.

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

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

sabre: 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 sabre include blade, brand, steel.

sabre (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
a fencing sword with a v-shaped blade and a slightly curved handle

sabre (verb)	sword (verb)
kill with a saber
cut or injure with a saber