Definition of "courier"

courier

/ˈkʊɹ.ɪə/

noun
plural couriers
1. A person who delivers messages.
2. A company that delivers messages.
3. A company that transports goods.
4. (Internet) A user who earns access to a topsite by uploading warez.
  Quotations
  You can always find musicians. There are more trackers than coders, pixelers, organizers, couriers, and designers combined.
  1999, Adrian Dunn, “Re: Using a scanned picture in your demo”, in comp.sys.ibm.pc.demos (Usenet)
  These sites have enormous hard drives and bandwidth for couriers to distribute the software from one site to the next.
  2005, Paul Craig, Ron Honick, Mark Burnett, Software Piracy Exposed, page 2
5. A person who looks after and guides tourists.
  Quotations
  "A courier!" cried Muscari, laughing. "Is that the last of your list of trades? And whom are you conducting?"
  1914, G. K. Chesterton, “The Paradise of Thieves”, in The Wisdom of Father Brown, p. 29
verb
third-person singular simple present couriers, present participle couriering, simple past and past participle couriered
1. To deliver by courier.