Doorman

A doorman, also known as doorkeeper, is someone who is posted at, and often guards, a door, or by extension another entrance (specific similar terms exist, e.g. Gatekeeper, Hall porter)

Specific uses include:

• Doorman (profession)
• Bouncer (doorman), mainly security
• Usher, often ceremonial
• Ostiary, ecclesiastical minor order
• Doorkeeper badged officer of the United Kingdom Houses of Parliament
• Doorkeeper of the United States House of Representatives
• "Doorman" (song), a rock song by Stereophonics from the album Language. Sex. Violence. Other?