obsession

Meanings

1. 1
   noun

   A state of thinking about something or someone all the time, in an unhealthy way.

   His obsession with money cost him his friends.

2. 2
   noun

   A thing or activity that someone cannot stop thinking about.

   Collecting old records became a real obsession for him.

From Latin obsessio (“a besieging”), from obsidere (“to besiege”); see obsess. Equivalent to obsess + -ion.

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