Japanese Words and Meanings

Nani?

nani
(informal)

Japanese for "What?"

You're always hearing this in anime and reading it in manga, and it's basically a simple response to anything confusing, offensive, or mysterious.

Can be used in virtually any situation. Plus you sound all cosmopolite if you can speak in Japanese.
1) "Nani?"
Trans: I beg your pardon?

2) "Nani?!"
T: Did you just say what I think you said?!

3) "Nani kore?"
T: What is this?

4) "Nani..."
T: This is all so mysterious and intriguing...I wonder what it all could mean.

have fun.