vault vs ribbed vault

vault and ribbed vault both are nouns.

Word	Noun	Adjective	Verb	Adverb
vault	Yes	No	Yes	No
ribbed vault	Yes	No	No	No

As nouns, ribbed vault is a hyponym of vault; that is, ribbed vault is a word with a more specific, narrower meaning than vault:

Other hyponyms of vault include barrel vault, groined vault.

vault (noun)	ribbed vault (noun)
the act of jumping over an obstacle	vault that resembles a groined vault but has ribbed arches
an arched brick or stone ceiling or roof
a burial chamber (usually underground)
a strongroom or compartment (often made of steel) for safekeeping of valuables

vault (verb)	ribbed vault (verb)
bound vigorously
jump across or leap over (an obstacle)