spliff vs reefer

spliff and reefer both are nouns.

Word	Noun	Adjective	Verb	Adverb
spliff	Yes	No	No	No
reefer	Yes	No	No	No

As nouns, spliff and reefer are synonyms defined as:

Other synonyms of spliff include joint, marijuana cigarette, stick.

spliff (noun)	reefer (noun)
marijuana leaves rolled into a cigarette for smoking	marijuana leaves rolled into a cigarette for smoking