(idiomatic) To spend considerable time and effort fruitlessly in a hopeless endeavor.

plural of beaver moon

plural of moon-cake (alternative form of mooncakes)

Alternative form of mooncake

plural of moon-pool

Alternative form of moon pool

Synonym of quasi-satellite.

Synonym of oxeye daisy.

plural of moon block

A crescent carved from wood or bamboo, used in Chinese divination, producing one of four possible answers based on its orientation after being dropped.