UNDERLINE

underscore [verb] [T] - to draw a line under (a word), esp. in order to show its importanceAll the technical words have been underlined in red.Underline also means to emphasize.She put the figures up on the board to underline the seriousness of the situation.To underline their disgust, the crowd started throwing bottles at the stage.This series of victories will underline their claim to be a top class team.Management are underlining that no one will lose their job. [+ that clause]