"marijuana" in the noun sense
1. marijuana, marihuana, ganja, Cannabis sativa
a strong-smelling plant whose dried leaves can be smoked for a pleasant effect or pain reduction
2. cannabis, marijuana, marihuana, 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
Source: WordNet® (An amazing lexical database of English)
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