1. A specific thing that is notable, special, or distinct from others
There's something particular about the way she speaks.
Há algo em particular na forma como ela fala.
2. A matter of interest or concern that requires attention
Is there something particular you wanted to discuss?
Há algo em particular que você gostaria de discutir?
3. Something specific or precise rather than general or vague
I'm looking for something particular for the dinner party.
Estou procurando algo em particular para a festa de jantar.