1. A social gathering where guests dress and decorate according to a specific theme or concept
We organized a 1920s-themed party for my friend's birthday.
Organizamos uma festa temática dos anos 1920 para o aniversário da minha amiga.
2. A celebration designed around a particular subject, period, character, or concept
The Halloween-themed party had decorations, costumes, and themed games.
A festa temática de Halloween tinha decorações, fantasias e jogos temáticos.