Underline

The lyrics of the song underline the singer's pain and heartache.

Accuracy is the underline of reliable information.

The teacher used an underline to draw attention to the vocabulary words.

Ethics is the underline of responsible decision-making.

Customer satisfaction is the underline of a successful business.

Time management is the underline of a productive day.

The government's policies underline discrimination against the minority.

The strange occurrences in the town underline the idea that something sinister is at play.

The recent comments made by the boss underline the sexism present in the workplace.

Confidence is the underline of a strong public speaker.

The underline beneath the author's signature on the first edition book added to its rarity.