형이다

he's my older brother

→ 형
phrase Rare #19,438
he's my older brother Used by a male speaker to identify someone as his older brother or an older male friend he calls 형. The ending 이다 is an informal form of “to be.”
KO: 저 사람은 내 형이다.
EN: That person is my older brother.

동수 형 이다

He's Dongsu's older brother.

— 브로커 (2022)

, 동수 형 이다

Hey, it’s Dongsu.

— 브로커 (2022)

, 동수 형 이다!

Wow, it's Dong-su!

— 브로커 (2022)

파완 형 이다

Pawan is my older brother.

— 카쉬미르의 소녀 (2015)

형 이다, 돌대가리

He's my older brother, you idiot.

— 워 머신: 전쟁 기계 (2026)