1. a circular building used for housing and servicing locomotives
Usage: railroad terminology
2. a powerful punch delivered with a wide swing of the arm
Usage: boxing; informal
3. a cabin or compartment on the stern of a ship
Usage: nautical; historical

Examples

• The old steam locomotive was stored in the roundhouse overnight.
• The railroad roundhouse could service twelve engines at once.
• He threw a wild roundhouse that missed his opponent completely.
• The boxer’s roundhouse punch knocked his rival to the canvas.
• The captain’s quarters were located in the ship’s roundhouse.
• Workers repaired the damaged locomotives inside the brick roundhouse.