Dialogue words you could use instead of the word…

There

As an exclamation

Ah

Aha

Come on

Deuce

Fiddlesticks

Fie

Gee

Gee whiz

Ha

Hello

Hey

Indeed

Lo

No

Oh

Oops

Phooey

Pooh

Pshaw

The deuce

The devil

The dickens

Urg

Well

What

Whoops

Woops

Why