What is the proper definition of a moon?

Answer 1

Celestial object that orbits a planet!!

Answer 2

moon Pronunciation (mn)
n.
1. often Moon 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.
2. A natural satellite revolving around a planet.
3. The moon as it appears at a particular time in its cycle of phases: a gibbous moon.
4. A month, especially a lunar month.
5. A disk, globe, or crescent resembling the natural satellite of Earth.
6. Moonlight.
7. Something unreasonable or unattainable: They acted as if we were asking for the moon.
8. Slang The bared buttocks.

Answer 3

A natural satellite is an object that orbits a planet or other body larger than itself and which is not man-made. Such objects are often called moons.

Answer 4

Any natural satellite of a planet
The natural satellite of the Earth

First one is for moon in general, and second is "our" moon

Answer 5

A natural sattilite orbiting around a larger body or mass.

Answer 6

A satellite that orbits a planet.

Answer 7

For several definitions of 'a moon,' go to -

http://www.thefreedictionary.com/moon

Answer 8

a planitary satellite that has gravity and orbits a planet.


earth's moon:
Luna

^_^