English dictionary
pontoon
/p/A/n't/u/n/
Definitions, examples, synonyms and antonyms from WordNet 3.0.
noun
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(nautical) a floating structure (as a flat-bottomed boat) that serves as a dock or to support a bridge
Source: WordNet 3.0
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a float supporting a seaplane
Source: WordNet 3.0
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A wooden flat-bottomed boat, a metallic cylinder, or a frame covered with canvas, India rubber, etc., forming a portable float, used in building bridges quickly for the passage of troops.
Source: webster1913