1. the condition of being unable to stop using or doing something harmful
Usage: medical/psychological
2. an unusually great interest in something or need to do or have something
Usage: informal

Examples

• His addiction to alcohol destroyed his marriage.
• The clinic treats people with drug addiction.
• She struggled with gambling addiction for years.
• Video game addiction is becoming more common among teenagers.
• He has an addiction to chocolate that he can’t control.
• The support group helps people overcome their addictions.
• Her addiction to social media affects her sleep.