1. A structure, such as a building or sculpture, erected as a memorial.
2. An inscribed marker placed at a grave; a tombstone.
3. Something venerated for its enduring historic significance or association with a notable past person or thing: the architectural monuments of ancient Rome; traditions that are monuments to an earlier era.
4. 1. An outstanding enduring achievement: a translation that is a monument of scholarship.
   2. An exceptional example: "Thousands of them wrote texts, some of them monuments of dullness" (Robert L. Heilbroner).
5. An object, such as a post or stone, fixed in the ground so as to mark a boundary or position.
6. A written document, especially a legal one.

[Middle English, from Latin monumentum, memorial, from monēre, to remind.]

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.