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

During one particularly active stretch last weekend, one post showed Trump riding horseback beside George Washington, next to a race car, with the White House in the background.

From Barron's • Jun. 8, 2026

Into the 1930s, it staged horseback fencing competitions.

From Los Angeles Times • May 22, 2026

Instead, assaults often involve two or three soldiers walking across a field or riding motorbikes, sometimes even on horseback or on bicycles.

From BBC • May 17, 2026

Even the legendary pitchman Paul Revere decided he could reach more people in print than on horseback, turning to newspaper ads to pitch his foundry.

From The Wall Street Journal • Apr. 15, 2026

An older Theodore Roosevelt jumping on horseback, a hobby that he took up as a teenager.

From "Death on the River of Doubt" by Samantha Seiple