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WordReference Random House Learner's Dictionary of American English © 2024pon•toon1 /pɑnˈtun/USA pronunciation also pon•ton /ˈpɑntən/USA pronunciation n. [countable]- Militarya floating structure used as support for a temporary bridge over a river.
- Civil Engineeringa float for a derrick, etc.
- Nautical, Aeronautics, Naval Termsa seaplane float.
WordReference Random House Unabridged Dictionary of American English © 2024pon•toon1 (pon to̅o̅n′),USA pronunciation n. - Militarya boat or some other floating structure used as one of the supports for a temporary bridge over a river.
- Civil Engineeringa float for a derrick, landing stage, etc.
- Nautical, Naval Termsa float for raising a sunken or deeply laden vessel in the water; a camel or caisson.
- Nautical, Aeronautics, Naval Termsa seaplane float.
Also, pon•ton (pon′tn).USA pronunciation - Latin pontōn- (stem of pontō) flat-bottomed boat, punt
- French ponton
- 1585–95
- British Terms, Gamesthe card game twenty-one.
- alteration of French vingt-et-un twenty-one 1915–20
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