hash vs hashish

hash and hashish both are nouns.

Word	Noun	Adjective	Verb	Adverb
hash	Yes	No	Yes	No
hashish	Yes	No	No	No

As nouns, hash and hashish are synonyms defined as:

hash and hashish: purified resinous extract of the hemp plant; used as a hallucinogen

Other synonyms of hash include haschisch, hasheesh.

hash (noun)	hashish (noun)
purified resinous extract of the hemp plant; used as a hallucinogen	purified resinous extract of the hemp plant; used as a hallucinogen
chopped meat mixed with potatoes and browned

hash (verb)	hashish (verb)
chop up