Definition of underline

Definition of underline
  1. underline Noun A line placed underneath a piece of text in order to provide emphasis or to indicate that it should be viewed in italics or that it acts as a hyperlink
  2. underline Noun An " character
  3. underline Verb To draw a line underneath something, especially to add emphasis; to underscore
  4. underline Verb To emphasise or stress something
  5. underline Adjective Passing under a railway line.
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