(Roman mythology) The sister of Aurora and Sol; the goddess of the moon; equivalent to the Greek Selene.

(chiefly science fiction or poetic) The name of Earth's moon; Moon.

(entomology) A luna moth: a member of species Actias luna.

(Christianity, chiefly Catholicism and Anglicanism) A lunette: a crescent-shaped receptacle, often glass, for holding the (consecrated) host (the bread of communion) upright when exposed in the monstrance.

(Hawaii) A foreman on a plantation.