A doorman opening the door of a taxi.
doorman definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
noun pl. doormen
a person whose work is opening the door of a building for those who enter or leave, hailing taxicabs, etc.
doorman definition by American Heritage Dictionary
A man employed to attend the entrance of a hotel, apartment house, or other building.