heroin

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The Simple English Wikipedia has an article on:

Heroin

Pronunciation change

IPA ^(key): /ˈhɛroʊ.ɪn/
Audio (US) (file)
Homophone: heroine

Noun change

Singular
heroin

Plural
none

Heroin powder

(uncountable) Heroin is very strong and addictive narcotic drug; it is made from opium.
The man injected heroin into his arm and immediately began to feel better.

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