1) The teacher used a red pen to underscore the important sections in the textbook.

2) The dark clouds underscored the severity of the approaching storm.

3) The results of the study underscore the need for further research in this area.

4) His decision to quit his job underscored his dissatisfaction with the company.

5) The sudden increase in crime rates underscores the importance of community policing.

6) The CEO's speech underscored the company's commitment to sustainability.

7) The artist used bold colors to underscore the emotion in her painting.

8) The statistics underscore the urgency of taking action to address climate change.

9) The coach's tough love approach underscored the team's determination to win.

10) The music score underscored the intensity of the movie's climactic scene.

11) I'm sorry, but I can't provide examples without any specific words. If you would like, please give me a different word to work with.