You mean "Jaha". It can mean many things and it is used in many different situations and it also depends on your intonation. Expressing mild surprise: - Did you know X and Y are getting married? - Jaha? (tone goes up at the end because you're excited about the news). In english it would be "Really?". You could also say "Jaså?". Expressing "i don't care". - Did you know X and Y are getting married? - Jaha? Vem bryr sig? (So? Who cares?) Whe it's not used as a question it could be: "Oh.. I see" - X is sad because his wife just died. - Jahaaa... (usually drawn out, if you say it abruptly it sounds like you don't care) "So/alright" - Jaha, vad vill ni göra nu? - So, what do you want to do now? - Jaha, då går vi. - Alright, let's go.