pontoon

1 of 2

noun (1)

pon·​toon pän-ˈtün How to pronounce pontoon (audio)
1
: a flat-bottomed boat (such as a lighter)
especially : a flat-bottomed boat or portable float used in building a floating temporary bridge
2
: a float especially of a seaplane

pontoon

2 of 2

noun (2)

British

Examples of pontoon in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Noun
Cue more fights, explosions (including one on a pontoon boat) and a very sleek looking Stone who appears to be some criminal boss. Chris Gardner, HollywoodReporter, 2 Apr. 2025 Rent bikes, kayaks, golf carts, and even pontoon boats. Kelsey Glennon, Southern Living, 19 Mar. 2025 Just for a minute, my husband and I agree, because the weather is beautiful, because my son does look like my father, because the pontoon is big and fancy and the baby has never been on a boat before. Julie Buntin, Harper's Magazine, 2 Jan. 2025 On Tuesday, Kentucky Gov. Andy Beshear told Morning Edition that he's been traveling across the state on a pontoon boat, mourning with the families of recently deceased residents and helping those who were displaced. Destinee Adams, NPR, 18 Feb. 2025 See All Example Sentences for pontoon

Word History

Etymology

Noun (1)

French ponton, from Old French, from Latin ponton-, ponto

Noun (2)

perhaps alteration of vingt-et-un

First Known Use

Noun (1)

1676, in the meaning defined at sense 1

Noun (2)

circa 1917, in the meaning defined above

Time Traveler
The first known use of pontoon was in 1676

Browse Nearby Words

Cite this Entry

“Pontoon.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pontoon. Accessed 16 Apr. 2025.

Kids Definition

pontoon

noun
pon·​toon
pän-ˈtün
1
: a flat-bottomed boat
2
: a float used in building a floating bridge
3
: a float of an airplane
Etymology

Noun

from French ponton "a floating bridge, punt," from Latin ponton-, ponto (same meaning), from pont-, pons "bridge" — related to punt entry 1

More from Merriam-Webster on pontoon

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!