He was having trouble getting his distinguishing mark in under the button.
You always say the Adam's apple is the one sure distinguishing mark.
A scar on his right foot served as a distinguishing mark.
According to his lawyer, he couldn't come up with any distinguishing marks at all.
There were no distinguishing marks or scars of any kind.
The first distinguishing mark was a horizontal line across the middle of the structure.
Did she describe any distinguishing marks on his body, for instance?
There seemed no need for any distinguishing mark on his armored suit.
Man's quest for meaning may be his truly distinguishing mark.
"But the distinguishing mark is no longer on the front sight."