1. 1. The entire number of copies of a publication issued at one time or from a single set of type.
   2. A single copy from this group.
   3. The form in which a publication is issued: a paperback edition of a novel; an annotated edition of Shakespeare.
   4. A version of an earlier publication having substantial changes or additions: a newly revised edition of a standard reference work.
2. All the copies of a specified issue of a newspaper: the morning edition; the Sunday edition.
3. A broadcast of a radio or television news program: Thursday's edition of the six o'clock news.
4. 1. The entire number of like or identical items issued or produced as a set: a limited edition of early jazz recordings; a signed edition of a group of lithographs.
   2. Any of the various or successive forms in which something is offered or presented: this year's edition of fall fashions from Paris.
5. One that closely resembles an original; a version: The boy was a smaller edition of his father.

[Middle English edicion, version, translation, from Latin ēditiō, ēditiōn-, publication, production, from ēditus, past participle of ēdere, to publish, produce. See edit.]

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.