A colt is a young male horse,[1] under the age of four. Older male horses are called either a "stallion", if left fertile, or a "gelding" if neutered. The verb "to geld" refers to the process of neutering a stallion.

A young female horse is called a filly[1] until age four, and a mare thereafter.

A group of colts is called a "rag".

References

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  1. 1.0 1.1 Cothran, E. Gus; Alois Wilhelm, Podhajsky (2025-02-13). "Horse". Encyclopædia Britannica. Encyclopædia Britannica, Inc. Archived from the original on 2025-02-11. Retrieved 2025-03-03.

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