Al's name and number popped up in the little window.

More of them just seemed to pop up in conversation all the time.

Why did two and three keep popping up in all this?

The dream to create a united community came popping up in time.

"She popped up in a case I was working on."

A number of hands popped up in the audience, and George began to call on them.

"I think the issue is going to pop up in the 2002 elections."

A head popped up out of the hole in the ground.

So, where do these devices pop up in the real world?

But sometimes the little plants pop up in the least expected places.