Obsession is a strong and overwhelming attachment or preoccupation [being constantly focused on something] with something or someone that dominates a person’s thoughts, emotions, and actions.
- John has an obsession with cleanliness and spends hours each day cleaning his house.
- Sarah’s obsession with her favorite band led her to attend every concert they held in her city.
Very Simple Definition:
Obsession is when you can’t stop thinking, feeling, or doing something.
- Tom is obsessed with video games and plays them all day long.
- Lisa is obsessed with her phone and never puts it down.