What is a filly?

Question

Yesterday in the belmont stakes the first "Filly" since 1905 won. What is a filly?

Answer 1

a female horse.

Answer 2

A young female horse...and she beat all the boys at Belmont.

Answer 3

Well, happy you asked that amazing inspiring question my friend! It is a female horse up to 3 years old my bud!

Answer 4

a female horse under age 4

once they turn 4 they are mares

a male horse under age 4 is a colt

after age 4 they are horses

all castrated horses are called geldings

Answer 5

a female horse up to 3 years old.

Answer 6

A young female horse.

Answer 7

Filly:

(1.) A young female horse under the age of four.

(2.) Informal A lively, high-spirited girl or young woman.

Possibly from Old Norse fylja, fem. of foli "foal".

Answer 8

a female horse

Answer 9

another name for a female horse im assuming your asking because it was the first time in a  century that on won the race