noun, plural count·er·men.
Examples from the Web for counterman
Quickly, as the mate approached, he fished out a dollar and thrust it at the counterman.
He'd expected a rejection, but the counterman only shrugged.Badge of Infamy|Lester del Rey
The counterman did not like kids, but he put away his dislike at the sight of Jimmy's money.The Fourth R|George Oliver Smith
The counterman took the bill and walked to the cash register.
The counterman handed Rick a dollar in change and gave the mate some smaller change.