special K vs super C

special K and super C both are nouns.

Word	Noun	Adjective	Verb	Adverb
special K	Yes	No	No	No
super C	Yes	No	No	No

As nouns, special K and super C are synonyms defined as:

Other synonyms of special K include cat valium, green, honey oil, jet, K, super acid.

special K (noun)	super C (noun)
street names for ketamine	street names for ketamine