A wise traveler knows how to get one's fill of local cuisine without overspending.

In negotiations, it's helpful to keep a fallback plan in one's sleeve.

Please select a book of one's choosing from the shelf.

She finished the entire book in one go.

Sometimes, one is at one's best when facing challenges.

Most of the attendees are regulars, but the conference also attracted a surprising number of one-dayers.

At the royal banquet, one must be on one's behaviour to avoid causing offense.

He was given a half-one for the match, which gave him one stroke every second hole.

For one's part, it's wise to apologize when you're wrong.

Jimmy the One barked orders from the quarterdeck, his voice carrying the calm authority of a seasoned first lieutenant.