Filly
Definition:
A female horse under four years of age is called a filly. A female horse over the age of four years is called a mare.
Pronunciation: fill ee
Also Known As: Horses under four are sometimes incorrectly called colts.
Examples: The mare had a new born filly by her side.
A female horse under four years of age is called a filly. A female horse over the age of four years is called a mare.
Pronunciation: fill ee
Also Known As: Horses under four are sometimes incorrectly called colts.
Examples: The mare had a new born filly by her side.
Source...