acid vs Lucy in the sky with diamonds

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

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

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

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

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

acid (noun)	Lucy in the sky with diamonds (noun)
street name for lysergic acid diethylamide	street name for lysergic acid diethylamide
any of various water-soluble compounds having a sour taste and capable of turning litmus red and reacting with a base to form a salt

acid (adjective)	Lucy in the sky with diamonds (adjective)
having the characteristics of an acid
being sour to the taste
harsh or corrosive in tone