—v., -lined, -lin•ing,
1. to mark with a line or lines underneath; underscore.
2. to indicate the importance of; emphasize, as by stressing or italicizing.
1. Print.a caption under an illustration.
2. a line drawn under something; an underscore.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.