Once-in-a-lifetime

A home is a once-in-a-lifetime purchase so you don't want to make any snap decisions.

About the wedding ... It's a once-in-a-lifetime chance to be the main attraction, so instead of doing it on a shoestring, why not pull out all the stops and make a great show of it?

He wasn't about to pass up that once-in-a-lifetime chance.

He resolved to embark on a once-in-a-lifetime enterprise.

This is a once-in-a-lifetime chance for Jamal.

This is a once-in-a-lifetime chance.

I've just been on a once-in-a-lifetime holiday. I'll tell you what, never again.

We can't pass up this once-in-a-lifetime opportunity.

This is a once-in-a-lifetime opportunity.

This was my once-in-a-lifetime opportunity.

a once-in-a-lifetime opportunity to travel the world

With Trump in office, they see what one Gulf official called a “once-in-a-lifetime opportunity” to achieve his country’s objectives.