See half moon for more half-moonBrE /ˌhɑːf ˈmuːn/ 🔊NAmE /ˌhæf ˈmuːn/ 🔊 nounthe moon when only half of it can be seen from the earth; the time when this happens 半月；出现半月的时候 ➡ compare full moon, harvest moon, new moon a thing that is shaped like a half-moon 半月形的东西