half-moon

US /ˈhæf.muːn/
UK /ˈhæf.muːn/
"half-moon" picture
1.

the moon when only half of its disk is illuminated, either at the first or last quarter

:
The sky was clear, and a beautiful half-moon shone brightly.
We watched the half-moon rise over the mountains.
2.

a shape resembling a half-moon

:
She wore earrings in the shape of a half-moon.
The chef cut the vegetables into half-moon slices.