Zen vs Lucy in the sky with diamonds

Zen and Lucy in the sky with diamonds both are nouns.

Word	Noun	Adjective	Verb	Adverb
Zen	Yes	No	No	No
Lucy in the sky with diamonds	Yes	No	No	No

As nouns, Zen and Lucy in the sky with diamonds are synonyms defined as:

Zen and Lucy in the sky with diamonds: street name for lysergic acid diethylamide

Other synonyms of Zen include acid, back breaker, battery-acid, dose, dot, Elvis, loony toons, pane, superman, window pane.

Zen (noun)	Lucy in the sky with diamonds (noun)
street name for lysergic acid diethylamide	street name for lysergic acid diethylamide
a Buddhist doctrine that enlightenment can be attained through direct intuitive insight
school of Mahayana Buddhism asserting that enlightenment can come through meditation and intuition rather than faith; China and Japan