Lucy in the sky with diamonds vs Zen

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

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

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

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

Other synonyms of Lucy in the sky with diamonds include acid, back breaker, battery-acid, dose, dot, Elvis, loony toons, pane, superman, window pane.

Lucy in the sky with diamonds (noun)	Zen (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