vault vs overleap

vault is a noun but overleap is not a noun.

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

As verbs, vault and overleap are synonyms defined as:

vault (noun)	overleap (noun)
the act of jumping over an obstacle
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)	overleap (verb)
bound vigorously	leave undone or leave out
jump across or leap over (an obstacle)	jump across or leap over (an obstacle)
	defeat (oneself) by going too far