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pontoon1

Syllabification: (pon·toon)

Pronunciation: /ˌpänˈto͞on/

Translate pontoon | into French | into Italian

Definition of pontoon

noun

a flat-bottomed boat or hollow metal cylinder used with others to support a temporary bridge or floating landing stage.
a bridge or landing stage supported by pontoons.
a large flat-bottomed barge or lighter equipped with cranes.
either of the floats fitted to an aircraft to enable it to land on water.