(1):
(n.) A peculiar person; - in an indefinite sense; as, a queer customer; an ugly customer.
(2):
(n.) One who collect customs; a toll gatherer.
(3):
(n.) A lewd woman.
(4):
(n.) A person with whom a business house has dealings; as, the customers of a bank.
(5):
(n.) One who regularly or repeatedly makes purchases of a trader; a purchaser; a buyer.