(vôlt) noun
1. An arched apartment or chamber; also, any subterranean compartment; cellar.
2. An arched structure; arched ceiling or roof.
3. Any vaultlike covering; the sky.
4. An arched roof of a cavity.
5. An underground room or compartment for storing wine, valuables, etc.
6. A burial chamber.
—v.t.
1. To form with a vaulted roof; cover with or as with a vault.
2. To construct in the form of a vault. [<OF volte, vaute, ult. <L volutus, pp. of volvere turn about, roll]
—vault′ed adjective
TYPES OF VAULTS
a. Cloister or cove. b. Groin. c. Welsh or underpitch.

(vôlt) v.t.
1. To leap over, especially with the aid of a pole or with the hands resting on something.
2. To mount with a leap, as a horse.
—v.i.
3. To leap; spring.
4. To do a curvet. See synonyms under LEAP.
—noun
1. A leap or bound; a springing leap, as one made with the aid of a pole.
2. The curvet of a horse. [<OF volter leap, gambol,? ult. <L volutus, pp. of volvere turn about, roll]
—vault′er noun