1A dealer in tea; a tea merchant. Now only in historical contexts.

2A man who prepares and serves tea; specifically (a) one who serves tea to customers in a tea house or similar establishment; (b) (in Japanese contexts) one who performs the tea ceremony; a tea master.

3A man who enjoys drinking tea, especially in preference to coffee.

4US slang. A smoker of, or dealer in, marijuana. Compare "tea". Now dated.