How to use "mark" in a sentence

Sentences

They wanted to gain his cooperation without violence because they were reluctant to mark him; their intention was that his death should appear to be an accident or a suicide

By this time, we had passed the one-year mark in the development process, and I knew we were not going to wind up with a usable script, so I didn't insist on discussing whether the rubber tires would melt off the vehicle within two hundred yards or three, or ponder at what point the gasoline tank might explode

Even then he hardly understood what was happening, until he heard another sound and saw the black mark jump forwards a little

I thought at once that it would know that I was there from the mark of the hammer.

"Yes, and he leaves his mark - the Z - everywhere," says the old man.