n.
- Land under dispute by two opposing parties, especially the field of battle between the lines of two opposing entrenched armies.
- An area of uncertainty or ambiguity.
- An unclaimed or unowned piece of land.
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.