1. 1. Without accompaniment; solitary: a lone skier on the mountain.
   2. Without companionship; isolated or lonely.
2. Being the only one; sole: the lone doctor in the county.
3. Situated by itself: a lone tree on the prairie; a lone blue tile in a white floor.

[Middle English, short for alone. See alone.]

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.