vaulting

(noun) (architecture) a vaulted structure. Example: "Arches and vaulting."

(noun) a light leap by a horse in which both hind legs leave the ground before the forelegs come down. Synonyms: curvet.

(verb) jump across or leap over (an obstacle). Synonyms: vault, overleap.

(verb) bound vigorously. Synonyms: vault.

(adj) revealing excessive self-confidence; reaching for the heights. Synonyms: overreaching. Example: "Vaulting ambition."