Play word 返り点 返り点 かえりてん marks written alongside characters in a classical Chinese text to indicate their ordering when read in Japanese
Play word つる返し つる返し つるがえし digging up, removing sprouts from, and replanting tubers (esp. of the sweet potato) to make for a bigger end product
Play word どんでん返し どんでん返し どんでんがえし rotating stage machinery, which rolls backwards 90 degrees to reveal the next scene