vault vs barrel vault

vault and barrel vault both are nouns.

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

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

Other hyponyms of vault include groined vault, ribbed vault.

vault (noun)	barrel vault (noun)
the act of jumping over an obstacle	the simplest form of vault; a single continuous arch
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)	barrel vault (verb)
bound vigorously
jump across or leap over (an obstacle)