Meaning of underline

un•der•line

Pronunciation: (v.un'dur-līn", un"dur-līn'n.un'dur-līn"), [key]
— v., n. -lined, -lin•ing,
—v.t.
  1. to mark with a line or lines underneath; underscore.
  2. to indicate the importance of; emphasize, as by stressing or italicizing.
—n.
  1. 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.
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