あっそ

interjection

oh, OK; oh, I see; oh, yeah?; hmm

Casual interjection, often indicating a lack of interest or mild dismissiveness. Similar to ふん, but softer. Used in informal conversation.

See also: ふん

• 「明日あしたテストだよ」「あっそ。」

  "We have a test tomorrow." "Oh, OK."

• 「もう帰かえるね」「あっそ、じゃあね。」

  "I'm going home now." "Oh, I see. Bye."