I prefer using email as my post-noun.

Not for the world would I ever do that!

No chance! I'm not going to do that.

There are many no through roads in this neighborhood.

Non-producers are not contributing to the growth of the economy.

The non-producer was not able to contribute to the project.

I wanted to tell her the truth, but I decided not to say anything.

The Party of No is a name given to a political group known for opposing any proposed legislation.

The non-accredited school did not meet the necessary standards.

There is no mark on the wall.