A dip on a mountain ridge between two peaks.
"The hikers paused in the cold col to catch their breath before ascending the second peak."
In plain English: A col is a narrow pass between two hills where you can walk through them to get from one side to the other.
"The col was too narrow and steep for our car to pass through safely."
Usage: Use col to describe a narrow, steep pass or depression connecting two high points in a mountain range. This term is specific to rugged terrain and should not be used interchangeably with broader terms like valley or gap unless the context emphasizes the tight connection between peaks.
Abbreviation of Colima (a state of Mexico.)
"The abbreviation COL on the shipping label indicated that the goods were destined for the Mexican state of Colima."
The word col was borrowed into English from the French term derived from the Latin collum, which means "neck." It entered usage as a doublet related to this original root meaning.