Underline (verb)

1. To draw a line under something, typically for emphasis or to indicate its importance.
2. To emphasize or stress the importance of something by drawing attention to it.

Origin:

The word 'underline' originated in the mid-16th century from the middle english 'underlīnen' and the old english 'underlīnian'. it is formed by the combination of the prefix 'under-' and the verb 'līnian' meaning 'to mark with lines.'.

Examples:

1. She underlined the important dates in her diary.
2. The teacher underlined the key points in the textbook for the students.
3. The interviewer underlined the candidate's relevant experience during the interview.
4. The author underlined the main themes of the novel in his presentation.
5. The manager underlined the importance of meeting deadlines during the team meeting.