Dictionary.com
Thesaurus.com

horseback

American  
[hawrs-bak] / ˈhɔrsˌbæk /

noun

  1. the back of a horse.

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


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

    2. ( as modifier )

      horseback riding

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of horseback

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

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Giamela loved that he and his kids could try out mountain biking and horseback riding, and not be concerned about wasting money if a child didn’t like a particular activity.

From The Wall Street Journal

“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

Studying for the bar exam, Inez is initially reluctant but agrees if she can lead the march on horseback.

From Los Angeles Times

Some were on horseback, some were on foot, and some— could it be?—were riding velocipedes.

From Literature

It also offered horseback riding along the resort’s dirt trails, swimming in a huge outdoor pool, clay tennis courts, casino gambling, an antiques shop, and even a movie theater for the guests.

From Literature