Meaning ofpontoonin English

Noun

1. a floating structure for bridges or docks; support
   The company built a pontoon to support the bridge construction.
2. a box for lifting sunken vessels
   A pontoon was used to lift the sunken boat from the ocean floor.
3. a seaplane's float
   The seaplane's pontoon helped it to land smoothly on the lake.
4. a lighter for ship loading/unloading
   The cargo ship was loaded with crates using a large pontoon.
5. a floating structure (for bridges or docks); supports
   The engineers designed a pontoon to connect the two islands.
6. a bridge with floating (supporting) structures
   A pontoon was installed under the dock to provide additional support.