(1):
(n.) A small wheel on a swivel, on which furniture is supported and moved.
(2):
(n.) One who casts; as, caster of stones, etc.; a caster of cannon; a caster of accounts.
(3):
(n.) A stand to hold a set of cruets.
(4):
(n.) A vial, cruet, or other small vessel, used to contain condiments at the table; as, a set of casters.