It is a male name of Estonian origin, and means "dawn". It is not widely used in America, where it may have other meanings, such as the Nahuatl "tree" or the Haitian Creole "coitus".
Name of an adult radio station in San Francisco, California. Name of a star in the constellation Lynx (Lynx).
Koit- refers to a star whose official name was approved on December 17, 2019, located in the constellation Lynx-