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Definition of rail


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rail 1  audio  (rl) KEY  

NOUN:
    1. A bar extending horizontally between supports, as in a fence.
    2. A structure made of such bars and supports and forming a barrier or guard; a railing.
  1. A steel bar used, usually in pairs, as a track for railroad cars or other wheeled vehicles.
  2. The railroad as a means of transportation: goods transported by rail.
  3. A horizontal framing member in a door or in paneling.
TRANSITIVE VERB:
railed , rail·ing , rails
To supply or enclose with rails or a rail.

ETYMOLOGY:
Middle English raile, from Old French reille, from Latin rgula, straight piece of wood, ruler; see reg- in Indo-European roots


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The American Heritage® Dictionary of the English Language, Fourth Edition.
Copyright © 2000 by Houghton Mifflin Company.
Published by the Houghton Mifflin Company. All rights reserved.
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