A 2005 US penny



  • In the United Kingdom and Ireland, a copper coin worth of a pound sterling or Irish pound before decimalisation. Abbreviation: d.
  • In the United Kingdom, a copper coin worth of a pound sterling. Abbreviation: p.
  • In Ireland, a coin worth of an Irish pound before the introduction of the euro. Abbreviation: p.
  • In the US and Canada, a one-cent coin, worth of a dollar. Abbreviation: ¢.
  • In various countries, a small-denomination copper or brass coin.
  • A unit of nail size, said to be either the cost per 100 nails, or the number of nails per penny. Abbreviation: d.
  • Money in general.


  • To jam a door shut by inserting pennies between the doorframe and the door.
  • To circumvent the tripping of an electrical circuit breaker by the dangerous practice of inserting a coin in place of a fuse in a fuse socket.


Similar words


  • From Middle English penny, peny, from Old English peniġ, penniġ, penning, from Proto-West Germanic *panning, from Proto-Germanic *panningaz, of uncertain origin (see that page for theories). pfennig.

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