んだ

interjection

that's right; yes; uh-huh

Dialectal interjection (Tōhoku-ben) used for agreement or acknowledgment, similar to standard そうだ or うん.

• 「明日あしたは休やすみだっけ？」「んだ。」

  "Tomorrow's a day off, right?" "That's right."

• 「手伝てつだってくれる？」「んだ、いいよ。」

  "Can you help me?" "Yeah, sure."