別の話だ

that's a different matter

→ 別

phrase Rare #31,521

that's a different matter Used to say that something is a separate issue or should be considered independently. Literally, it means “it's a different story.”

JA: 仕事のことは別の話だ。

EN: Work is a different matter.

別に別の話だけどね。

It’s a completely different matter, though.

全く別の話だ

That's a completely different matter.

— 嵐の中で (2018)

これは別の話だ

That's a different matter.

— ブゴニア (2025)

別の話だけど別に気にしてない。

That’s a separate matter, but I don’t really care.

それとこれは別の話だ。

That's a separate matter.

店長はそれとは別の話だ

The store manager is a separate matter.

— レザボア・ドッグス (1992)