| English noun: Zen | 
| 1. | Zen (group) school of Mahayana Buddhism asserting that enlightenment can come through meditation and intuition rather than faith; China and Japan | 
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 | Synonyms | Zen Buddhism | 
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 | Broader (hypernym) | Buddhism | 
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 | Member holonym | Zen Buddhist | 
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| 2. | Zen (cognition) a Buddhist doctrine that enlightenment can be attained through direct intuitive insight | 
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 | Synonyms | Zen Buddhism | 
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 | Broader (hypernym) | Buddhism | 
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 | Domain category members | satori | 
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| 3. | Zen (artifact) street name for lysergic acid diethylamide | 
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 | Synonyms | acid, back breaker, battery-acid, dose, dot, Elvis, loony toons, Lucy in the sky with diamonds, pane, superman, window pane | 
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 | Broader (hypernym) | LSD, lysergic acid diethylamide | 
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