horseback

American  

[hawrs-bak] / ˈhɔrsˌbæk /

noun

1. the back of a horse.

2. Geology. a low, natural ridge of sand or gravel; an esker.

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adverb

1. on horseback.

   to ride horseback.

adjective

1. made or given in a casual or speculative way; approximate or offhand.

   a horseback estimate on the construction costs.

horseback British  

/ ˈhɔːsˌbæk /

noun

1. 1. a horse's back (esp in the phrase on horseback )

   2. ( as modifier )

      horseback riding

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Etymology

Origin of horseback

1350–1400; Middle English. See horse, back ¹

Explanation

If you ride your trusty steed to school, you're traveling on horseback. Your arrival is going to make your classmates wish they had their own ponies! When horseback is used as a noun, it means "the back of a horse." It's more commonly used to describe someone who sits on a horse's back, a horseback rider, or as an adverb to describe that mode of transportation. Even if you're not experienced with horses, you may dream of one day going horseback riding on a beautiful beach!

Example Sentences

Some fought with only a trident; some fought mounted on horseback; some on chariot; others on foot with helmet and short sword; some with two daggers; still others exclusively fought wild beasts.

From The Wall Street Journal • Apr. 3, 2026

While serving in California as a Border Patrol sector chief along the southern border, Bovino was fond of posting pictures of himself on horseback and heavily armed.

From The Wall Street Journal • Jan. 29, 2026

The practice sees an animal-based scent trail laid for dogs to follow rather than a real animal, while a group of hunters follows the pack on horseback.

From BBC • Dec. 21, 2025

“This amazing property offers endless reserve views, horseback riding, a vegetable garden, all modern luxury amenities, and is adjacent to Balsam Farm and the magnificent Amagansett trail system,” it states.

From MarketWatch • Dec. 8, 2025

Jimmy looked around, imagining Lakota warriors on horseback.

From "In the Footsteps of Crazy Horse" by Joseph Marshall III