pontoon

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pon·toon1 / ˌpänˈtoōn/ • n. 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.

pontoons

pon·toon2 • n. Brit. the card game blackjack or vingt-et-un. ∎  a hand of two cards totaling 21 in this game.

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pontoonafternoon, attune, autoimmune, baboon, balloon, bassoon, bestrewn, boon, Boone, bridoon, buffoon, Cameroon, Cancún, cardoon, cartoon, Changchun, cocoon, commune, croon, doubloon, dragoon, dune, festoon, galloon, goon, harpoon, hoon, immune, importune, impugn, Irgun, jejune, June, Kowloon, lagoon, lampoon, loon, macaroon, maroon, monsoon, moon, Muldoon, noon, oppugn, picayune, platoon, poltroon, pontoon, poon, prune, puccoon, raccoon, Rangoon, ratoon, rigadoon, rune, saloon, Saskatoon, Sassoon, Scone, soon, spittoon, spoon, swoon, Troon, tune, tycoon, typhoon, Walloon •fortune, misfortune •vodun • veldskoen • honeymoon •forenoon • tablespoon • teaspoon •soupspoon • dessertspoon • Neptune •tribune • triune • opportune

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pontoon1 boat (or other vessel), of which a number are used to support a temporary bridge. XVII (ponton). — (O)F. ponton :— L. pontō, -ōn- punt, bridge of boats, f. pōns, pont- bridge, rel. to Indo-Iran. and Balto-Slav. words, with Gr. pátos, meaning ‘road’, ‘path’, but the relevance of the sense in PONTIFF (if this is ‘path-maker’) is not clear; see -OON.

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pontoon2 app. alt. of F. vingt-(et-)un ‘twenty-one’ (card game). XX.