Lune

Definition:

(n.) Anything in the shape of a half moon.
(n.) A figure in the form of a crescent, bounded by two intersecting arcs of circles.
(n.) A fit of lunacy or madness; a period of frenzy; a crazy or unreasonable freak.

Compare lune with other words:

lune vs. lunule

lune vs. monday

lunacy vs. lune

lunatic vs. lune

crescent vs. lune

circle vs. lune