1. circular or semicircular buildings used for housing and servicing locomotives
Usage: railroad terminology
2. circular or round buildings, especially traditional dwellings
3. wide, sweeping punches thrown with the arm extended
Usage: boxing; informal

Examples

• The old railroad roundhouses were demolished to make way for modern facilities.
• Steam locomotives were serviced in the large brick roundhouses.
• Ancient Celtic roundhouses were built with stone walls and thatched roofs.
• The museum features a replica of a traditional Irish roundhouse.
• He threw wild roundhouses but couldn’t connect with his opponent.
• The boxer’s roundhouses left him off balance and vulnerable to counterattacks.