She picked up the brittle cookie and broke one off to share with her friend.

In those days, one met one's Waterloo after a single miscalculation on the battlefield.

This task can be done with one's eyes shut.

Her constant one-up-manship at work made collaboration difficult.

Her constant one-up-womanship at team meetings made collaboration difficult.

It's easy to get up to one's elbows in a project and lose track of everything else.

As your oldest friend, I'll always keep it one hundred with you, even when it's hard to hear.

For a silly way to relieve stress, standing on one's head for a few minutes can unexpectedly boost your mood.

A coach told new players that staying on top of one's game requires daily practice.

The students passed the exam with the skin of one's teeth after cramming all night.