noun

1. ☆ a circular building, with a turntable in the center, used for storing and repairing locomotives
2. a cabin on the after part of the quarterdeck on old sailing ships
3. ☆ Baseball
   1. a pitch with a wide curve
   2. Boxing a wide swing or hook, as to the head
4. ☆ Pinochle a meld consisting of a king and queen of each of the four suits

Etymology: orig., a lockup, after Du rondhuis, guardhouse