noun
obsession
uhb-SEH-shuhn
noun
1
A single idea, activity, or interest that dominates someone's thoughts far more than is normal or healthy.
"His obsession with tidiness meant every shelf had to be perfectly straight."
"Running became something of an obsession for her after the marathon."
How to Use Obsession
Learner’s notesIn plain EnglishA fixation on one thing that takes over someone's mind.
Common pairings
an obsession with
a lifelong obsession
become an obsession
Word Forms
obsessions plural
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His _____ with tidiness meant every shelf had to be perfectly straight.
Etymology
From Latin obsessio, "a besieging", from the same root as "obsess".