English Reference

Word

pontoon

Phoneticspon·toon

US/pɑnˈtun/

UK/pəntˈuːn/

Definition

n. a flat, floating platform used to carry people or things across water. It can also be a long, flat boat used to carry vehicles or heavy equipment.

n. a flat, floating platform or a long, flat-bottomed boat used for transporting vehicles or heavy cargo across water. Often used in military or industrial contexts for bridging or ferrying.

Examples

“The soldiers used a pontoon to cross the river.”

“The construction crew built a temporary bridge using several large pontoons to reach the island.”

“During the amphibious assault, the naval forces deployed a series of heavy-duty pontoons to create a stable landing platform for the armored vehicles.”

Examples

simple

“The soldiers used a pontoon to cross the river.”

contextual

“The construction crew built a temporary bridge using several large pontoons to reach the island.”

complex

“During the amphibious assault, the naval forces deployed a series of heavy-duty pontoons to create a stable landing platform for the armored vehicles.”

Real-World Examples

“The state government confirmed it will spend $5m to upgrade a pontoon to a ferry wharf over the next six months, to be running in time for summer.”
The Guardian · 3 Sept 2026

Etymology

Borrowed from Middle French ponton, from Old French ponton, from Latin pontō, pontōnem (“ferryboat”), from pōns (“bridge”).

Probably from vingt-un, an obsolete variant of vingt-et-un (“twenty-one”), from French.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

Domain

Military

This entry

Level
C1 · Advanced
Frequency
Occasional
Updated

Scan code

englishreference.com/q/pontoon

English Reference