Definition of pontoon noun from the Oxford Advanced Learner's Dictionary

     

    pontoon

     noun
    noun
    BrE BrE//pɒnˈtuːn//
     
    ; NAmE NAmE//pɑːnˈtuːn//
     
    Types of boats and ships
     
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  1. 1[countable] a temporary floating platform built across several boats or hollow structures, especially one used for tying boats to
  2. 2[countable] a boat or hollow structure that is one of several used to support a floating platform or bridge a pontoon bridge See related entries: Types of boats and ships
  3. 3 [uncountable] (British English) = blackjack
  4. Word Origin sense 3 early 20th cent.: probably an alteration of vingt-et-un ‘twenty-one’. senses 1 to 2 late 17th cent.: from French ponton, from Latin ponto, ponton-, from pons, pont- ‘bridge’.
See the Oxford Advanced American Dictionary entry: pontoon

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