moon

noun

The natural satellite of Earth, visible by reflection of sunlight and having a slightly elliptical orbit, approximately 356,000 kilometers (221,600 miles) distant at perigee and 406,997 kilometers (252,950 miles) at apogee. Its mean diameter is 3,475 kilometers (2,160 miles), its mass approximately one eightieth that of Earth, and its average period of revolution around Earth 29 days 12 hours 44 minutes calculated with respect to the sun.

A natural satellite revolving around a planet.

The moon as it appears at a particular time in its cycle of phases.

A month, especially a lunar month.

A disk, globe, or crescent resembling the natural satellite of Earth.