ganja vs green goddess

ganja and green goddess both are nouns.

Word	Noun	Adjective	Verb	Adverb
ganja	Yes	No	No	No
green goddess	Yes	No	No	No

As nouns, green goddess is a hyponym of ganja; that is, green goddess is a word with a more specific, narrower meaning than ganja:

ganja: the most commonly used illicit drug; considered a soft drug, it consists of the dried leaves of the hemp plant; smoked or chewed for euphoric effect
green goddess: street names for marijuana

Other hyponyms of ganja include Acapulco gold, Mexican green, dope, gage, grass, locoweed, Mary Jane, pot, sens, sess, skunk, smoke, weed, kief.

ganja (noun)	green goddess (noun)
the most commonly used illicit drug; considered a soft drug, it consists of the dried leaves of the hemp plant; smoked or chewed for euphoric effect	street names for marijuana
a strong-smelling plant whose dried leaves can be smoked for a pleasant effect or pain reduction