は

い

interjection

1. yes, that is correct. Polite language.
2. understood, I see, OK, okay.
3. present, here. As a response to a roll call.
4. pardon?, what's that?, come again?. Colloquialism. With rising intonation.
5. now, here, here you go. Used when calling for someone's attention or when handing something to someone.
6. giddy-up, giddap.