addict

柯林斯詞典

1. N-COUNT An addict is someone who takes harmful drugs and cannot stop taking them. (吸毒) 上癮者
He's only 24 years old and a drug addict. 他只有24歲，可已經(jīng)是一個癮君子。
2. N-COUNT If you say that someone is an addict, you mean that they like a particular activity very much and spend as much time doing it as they can. 對…入迷的人
She is a TV addict and watches as much as she can. 她是一個電視迷，看盡可能多的電視。

Some drug addicts turn to crime in order to support their habit .
They were shocked to discover that their daughter was a heroin addict.
It's difficult to wean an addict off cocaine once they're hooked .
He went to a rehabilitation centre where they help addicts to overcome their addiction.
The children were in danger of picking up needles used by crack addicts.