[ rahy-der ]
See synonyms for: riderriders on Thesaurus.com

  1. a person who rides a horse or other animal, a bicycle, etc.

  2. something that rides.

  1. an additional clause, usually unrelated to the main body, attached to a legislative bill in passing it.

  2. an addition or amendment to a document, testament, etc.

  3. any object or device that straddles, is mounted upon, or is attached to something else.

  4. a rail or stake used to brace the corners in a snake fence.

  5. Shipbuilding. any of various members following and reinforcing primary framing members, especially a plate or timber running along the top of a keel.

  6. Numismatics.

    • a former gold coin of Scotland, first issued by James III in 1475, whose obverse bears an equestrian figure of the king.

    • any of several gold or silver coins of the Netherlands bearing the figure of a horseman.

Origin of rider

before 1100; Middle English ridere, Old English. See ride, -er1

Other words from rider

  • rid·er·less, adjective

Words Nearby rider

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use rider in a sentence

British Dictionary definitions for rider


/ (ˈraɪdə) /

  1. a person or thing that rides, esp a person who rides a horse, a bicycle, or a motorcycle

  2. an additional clause, amendment, or stipulation added to a legal or other document, esp (in Britain) a legislative bill at its third reading

  1. British a statement made by a jury in addition to its verdict, such as a recommendation for mercy

  2. any of various objects or devices resting on, surmounting, or strengthening something else

  3. a small weight that can be slid along one arm of a chemical balance to make fine adjustments during weighing

  4. geology a thin seam, esp of coal or mineral ore, overlying a thicker seam

Derived forms of rider

  • riderless, adjective

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

Cultural definitions for rider


A provision, usually controversial and unlikely to pass on its own merits, that is attached to a popular bill in the hopes that it will “ride” to passage on the back of the popular bill.

The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.