1. the natural satellite that orbits Earth and reflects light from the sun
2. a natural satellite of any planet
3. a month, especially a lunar month
Usage: archaic

1. to expose one’s buttocks as a prank or insult
Usage: informal

Examples

• The full moon lit up the night sky.
• Jupiter has many moons orbiting around it.
• We could see the crescent moon through the clouds.
• Saturn’s largest moon is called Titan.
• The moon’s phases change throughout the month.
• Astronauts first landed on the moon in 1969.
• The teenagers were caught mooning passing cars.