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  • IPA(key): /pɒnˈtuːn/
  • (file)

Etymology 1[edit]

Borrowed from Old French ponton, from Latin pontō, pontōnem (ferryboat), from pōns (bridge).


pontoon (plural pontoons)

  1. (military) A flat-bottomed boat used as a support for a temporary bridge.
  2. A floating structure supporting a bridge or dock.
    Synonym: pontoon bridge
  3. A box used to raise a sunken vessel.
  4. A float of a seaplane.
  5. A lighter or barge used for loading or unloading ships.

Etymology 2[edit]

Probably from vingt-un, an obsolete variant of vingt-et-un (twenty-one), from French.


pontoon (uncountable)

  1. (card games) A card game in which the object is to obtain cards whose value adds up to, or nearly to, 21 but not exceed it.
    Synonym: vingt-et-un

See also[edit]