Noun zen has 3 senses
- Zen, Zen Buddhism - school of Mahayana Buddhism asserting that enlightenment can come through meditation and intuition rather than faith; China and Japan
--1 is a kind of Buddhism
--1 has members: Zen Buddhist
- Zen, Zen Buddhism - a Buddhist doctrine that enlightenment can be attained through direct intuitive insight
--2 is a kind of Buddhism
- acid, back breaker, battery-acid, dose, dot, Elvis, loony toons, Lucy in the sky with diamonds, pane, superman, window pane, Zen - street name for lysergic acid diethylamide
--3 is a kind of lysergic acid diethylamide, LSD
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