Dash (—
), not hyphen (‐
) is another pronunciation used for various purposes. Note that when using dash, there should not have space before and after the dash since dash itself is a clear separation.
You can use dash to mark interruption.
I ran to the bus stop—but the bus had driven away.
You can also use dash as an alternative to Parentheses.
The bug—which landed on my nose—had to be the size of a softball.
You can also use dash as an alternative to colon to introduce things.
I have only ever wanted one thing—snacks.
You use dash to indicate an interruption during speech.
"Wait a minute, that doesn't make sense. We could—" James said before the explosive blasted.