stopwatch
stop watch

Phillips took a digital stop watch from his vest pocket.

So the key is to get out there with a stop watch and see which type of turn is more efficient for you.

Bartlett didn't need a stop watch because the running time of the record could itself be checked later.

I used to use a stop watch and then I thought of a better way.

Or should we let someone with a stop watch determine at what point it becomes a human?

"Meet you back here in five minutes or less," he said, pushing the timer on his stop watch.

I wished he hadn't gotten a stop watch for Christmas.

Hansen looked at the stop watch in his bandaged hand and nodded.

He waited, timing the sucking sound by the long hand of a stop watch.

Each night we timed the exercise with a stop watch.