I have a fortnightly meeting with my team.

The fortress stood tall on top of the hill.

It was a fortuitous meeting that changed my life.

It was a fortuity that I ran into my old friend at the grocery store.

She married him for his money, but he turned out to be a fortune hunter.

I went to see a fortuneteller yesterday.

I decided to take forty winks before starting my work.

He fired forty-five rounds from his gun.

A fortiori, we should prioritize this project.

Sailors often encounter treacherous storms in the roaring forties.