She introduced her new boy-friend to her parents.

She introduced her boy friends to her parents.

I went shopping with my boy-friends.

The boat boy helped the passengers board the ship.

The boat boys were busy unloading the cargo from the ship.

The stock boy is responsible for organizing and restocking the shelves.

The stock-boy is responsible for organizing and restocking the shelves.

The roaring boy entertained the crowd with his energetic performance.

The roaring boys were causing a ruckus in the street.

Yahoo boys are known for their fraudulent activities.