The term 'LAV' CAN refer to several different things. The crossword solutions for this term are CAN (3 letters), JOHN (4 letters), PRIVY (5 letters), and LOO (3 letters). CAN is an abbreviation for the Canadian province of Alberta, while JOHN is a common name. PRIVY is an old-fashioned word for a toilet or outhouse, and LOO is a British slang term for the same thing. All of these words are related to the idea of a lavatory, which is a room with a toilet or other sanitation facilities.