cat valium vs special K

cat valium and special K both are nouns.

Word	Noun	Adjective	Verb	Adverb
cat valium	Yes	No	No	No
special K	Yes	No	No	No

As nouns, cat valium and special K are synonyms defined as:

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

cat valium (noun)	special K (noun)
street names for ketamine	street names for ketamine