small; tiny; few; minor; in area, volume, quantity, or power, being less than average or less than the object of comparison; opposite of 大 dà

A celestial body that orbits a star, has enough mass to form a spherical shape, and has cleared its orbital path of other debris. Planets do not emit their own light but reflect the light of the star they orbit. Also known as 惑星 huò​xīng.