1. One that rides, especially one who rides horses.
2. A clause, usually having little relevance to the main issue, that is added to a legislative bill.
3. An amendment or addition to a document or record. Also called allonge.
4. Something, such as the top rail of a fence, that rests on or is supported by something else.

The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.