The machinist carefully aligned the workpieces with the center marks before starting the drill press.

Before donating the shirt, he checked the laundry-mark to see if it allowed machine washing.

When learning Mandarin, paying attention to tone marks can prevent misunderstandings.

The linguist placed a subtle tone mark above the vowel to show its rising pitch.

She counted the exclamation marks at the end of each sentence to teach punctuation.

She filled the page with question marks to show her confusion.

She carefully repaired each pitch mark on the green before putting, knowing the ground's smoothness could affect the ball's roll.

Before the live broadcast, the stage manager checked the cue marks to ensure every actor hit their position.

Before measuring the solution, she adjusted the meniscus to the graduation mark on the volumetric flask.

The scholar argued that the mark-white written in the margin, though obscure, reflected Mark's rhetorical intent.