1. Architecture. A vertical groove, especially in a Doric column or frieze.
2. A symbolic figure that is usually engraved or incised.
3. A symbol, such as a stylized figure or arrow on a public sign, that imparts information nonverbally.

[Greek gluphē, carving, from gluphein, to carve.]

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.