hurdle vs vault

hurdle and vault both are nouns.

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

As nouns, hurdle and vault are synonyms defined as:

As verbs, vault is a hypernym of hurdle; that is, vault is a word with a broader meaning than hurdle:

Other hypernyms of hurdle include overleap.

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

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