vault vs hurdle

vault and hurdle both are nouns.

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

As nouns, vault and hurdle are synonyms defined as:

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

vault (noun)	hurdle (noun)
the act of jumping over an obstacle	the act of jumping over an obstacle
an arched brick or stone ceiling or roof	a light movable barrier that competitors must leap over in certain races
a burial chamber (usually underground)	an obstacle that you are expected to overcome
a strongroom or compartment (often made of steel) for safekeeping of valuables

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