행사가 · 행사를
event, function
Example
이번 주말에 학교에서 큰 행사가 있어요.
There's a big event at school this weekend.
Word parts
행 carry out+사 affair
Literally 'carrying out an affair'.
Good to know
Stores also use 행사 for a sale or promotion: 할인 행사 'discount event'.
Related words