from The American Heritage® Dictionary of the English Language, 4th Edition

  • intransitive v. To get off or down, as from a horse.
  • intransitive v. To get out of a vehicle.
  • transitive v. To remove from a support, setting, or mounting.
  • transitive v. To unseat or throw off, as from a horse.
  • transitive v. To disassemble (a mechanism, for example).
  • n. The act or manner of dismounting, especially from a horse.
  • n. Sports A move in gymnastics whereby the gymnast gets off an apparatus or completes a floor exercise, typically landing on both feet.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The part of a routine in which the gymnast detaches from an apparatus.
  • v. to get off (something)
  • v. to make a hard drive unavailable for use

from the GNU version of the Collaborative International Dictionary of English

  • intransitive v. To come down; to descend.
  • intransitive v. To alight from a horse; to descend or get off, as a rider from his beast.
  • transitive v. To throw or bring down from an elevation, place of honor and authority, or the like.
  • transitive v. To throw or remove from a horse; to unhorse.
  • transitive v. To take down, or apart, as a machine.
  • transitive v. To throw or remove from the carriage, or from that on which a thing is mounted; to break the carriage or wheels of, and render useless; to deprive of equipments or mountings; -- said esp. of artillery.

from The Century Dictionary and Cyclopedia

  • To descend from a height; come or go down.
  • To get off from a horse or other ridden animal; descend or alight, as a rider from the saddle: as, the officer ordered his troops to dismount.
  • To throw or bring down from an elevation, or from a place or post of authority.
  • To throw or bring down from a horse; unhorse: as, the soldier dismounted his adversary.
  • To remove or throw down, as cannon or other artillery from their carriages, or from a parapet or intrenchment; destroy the mountings of, so as to render useless.
  • To remove from a frame, setting, or other mounting: as, to dismount a picture or a jewel.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. the act of dismounting (a horse or bike etc.)
  • v. alight from (a horse)


Probably alteration of obsolete French desmonter, to unseat : des-, dis- + monter, to mount; see mount1.
(American Heritage® Dictionary of the English Language, Fourth Edition)
dis- +‎ mount, probably a calque of Old French desmonter. (Wiktionary)



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