Meaning of underline
Pronunciation: (v.un'dur-līn", un"dur-līn'n.un'dur-līn"), [key]
— v., n. -lined, -lin•ing,
- to mark with a line or lines underneath; underscore.
- to indicate the importance of; emphasize, as by stressing or italicizing.
- a caption under an illustration.
- a line drawn under something; an underscore.
- underline (Thesaurus)