nautical A floating structure (as a flat-bottomed boat) that serves as a dock or to support a bridge.

Roget 272: vehicle, conveyance, carriage, caravan, van; common carrier; wagon, waggon^†, wain, dray, cart, lorry.    truck, tram; cariole, carriole^†; limber, tumbrel, pontoon; barrow; wheel barrow, hand barrow; perambulator; Bath chair, wheel chair, sedan chair; chaise; palankeen^†, palanquin; litter, brancard^†, crate, hurdle, stretcher, ambulance; black Maria; conestoga wagon, conestoga wain; jinrikisha, ricksha, brett^†, dearborn [U.S.], dump cart, hack, hackery^†, jigger, kittereen^†, mailstate^†, manomotor^†, rig, rockaway^†, prairie schooner [U.S.], shay, sloven, team, tonga^†, wheel; hobbyhorse, go-cart; cycle; bicycle, bike, two-wheeler; tricycle, velocipede, quadricycle^†.    equipage, turn-out; coach, chariot, phaeton, break, mail phaeton, wagonette, drag, curricle^†, tilbury^†, whisky, landau, barouche, victoria, brougham, clarence^†, calash, caleche [Fr.], britzka^†, araba^†, kibitka^†; berlin; sulky, desobligeant [Fr.], sociable, vis-a-vis, dormeuse [Fr.]; jaunting car, outside car; dandi^†; doolie^†, dooly^†; munchil^†, palki^†; roller skates, skate; runabout; ski; tonjon^†; vettura^†.    post chaise, diligence, stage; stage coach, mail coach, hackney coach, glass coach; stage wagon, car, omnibus, fly, cabriolet^†, cab, hansom, shofle^†, four-wheeler, growler, droshki^†, drosky^†.    dogcart, trap, whitechapel, buggy, four-in-hand, unicorn, random, tandem; shandredhan^†, char-a-bancs [Fr.].    motor car, automobile, limousine, car, auto, jalopy, clunker, lemon, flivver, coupe, sedan, two-door sedan, four-door sedan, luxury sedan; wheels [Coll.], sports car, roadster, gran turismo [It], jeep, four-wheel drive vehicle, electric car, steamer; golf cart, electric wagon; taxicab, cab, taxicoach^†, checker cab, yellow cab; station wagon, family car; motorcycle, motor bike, side car; van, minivan, bus, minibus, microbus; truck, wagon, pick-up wagon, pick-up, tractor-trailer, road train, articulated vehicle; racing car, racer, hot rod, stock car, souped-up car.    bob, bobsled, bobsleigh^†; cutter; double ripper, double runner [U.S.]; jumper, sled, sledge, sleigh, toboggan.    train; accommodation train, passenger train, express trail, special train, corridor train, parliamentary train, luggage train, freight train, goods train; 1st class train, 2nd class train, 3rd class train, 1st class carriage, 2nd class carriage, 3rd class carriage, 1st class compartment, 2nd class compartment, 3rd class compartment; rolling stock; horse box, cattle truck; baggage car, express car, freight car, parlor car, dining car, Pullman car, sleeping car, sleeper, dome car; surface car, tram car, trolley car; box car, box wagon; horse car [U.S.]; bullet train, shinkansen [Jap.], cannonball, the Wabash cannonball, lightning express; luggage van; mail, mail car, mail van.    shovel, spool, spatula, ladle, hod, hoe; spade, spaddle^†, loy^†; spud; pitchfork; post hole digger.    [powered construction vehicles] tractor, steamshovel, backhoe, fork lift, earth mover, dump truck, bulldozer, grader, caterpillar, trench digger, steamroller; pile driver; crane, wrecking crane.    ... show more

Roget 273: ship, vessel, sail; craft, bottom.    navy, marine, fleet, flotilla; shipping.    man of war etc. (combatant) 726; transport, tender, storeship^†; merchant ship, merchantman; packet, liner; whaler, slaver, collier, coaster, lighter; fishing boat, pilot boat; trawler, hulk; yacht; baggala^†; floating hotel, floating palace; ocean greyhound.    ship, bark, barque, brig, snow, hermaphrodite brig; brigantine, barkantine^†; schooner; topsail schooner, for and aft schooner, three masted schooner; chasse-maree [Fr.]; sloop, cutter, corvette, clipper, foist, yawl, dandy, ketch, smack, lugger, barge, hoy^†, cat, buss; sailer, sailing vessel; windjammer; steamer, steamboat, steamship, liner, ocean liner, cruisp, flap, dab, pat, thump, beat, blow, bang, slam, dash; punch, thwack, whack; hit hard, strike hard; swap, batter, dowse^†, baste; pelt, patter, buffet, belabor; fetch one a blow; poke at, pip, ship of the line; destroyer, cruiser, frigate; landing ship, LST; aircraft carrier, carrier, flattop [Coll.], nuclear powered carrier; submarine, submersible, atomic submarine.    boat, pinnace, launch; life boat, long boat, jolly boat, bum boat, fly boat, cock boat, ferry boat, canal boat; swamp boat, ark, bully, battery, bateau [Can.], broadhorn^†, dory, droger^†, drogher; dugout, durham boat, flatboat, galiot^†; shallop^†, gig, funny, skiff, dingy, scow, cockleshell, wherry, coble^†, punt, cog, kedge, lerret^†; eight oar, four oar, pair oar; randan^†; outrigger; float, raft, pontoon; prame^†; iceboat, ice canoe, ice yacht.    catamaran, hydroplane, hovercraft, coracle, gondola, carvel^†, caravel; felucca, caique^†, canoe, birch bark canoe, dugout canoe; galley, galleyfoist^†; bilander^†, dogger^†, hooker, howker^†; argosy, carack^†; galliass^†, galleon; polacca^†, polacre^†, tartane^†, junk, lorcha^†, praam^†, proa^†, prahu^†, saick^†, sampan, xebec, dhow; dahabeah^†; nuggah^†; kayak, keel boat [U.S.], log canoe, pirogue; quadrireme^†, trireme; stern-wheeler [U.S.]; wanigan^†, wangan [U.S.], wharf boat.    balloon; airship, aeroplane; biplane, monoplane, triplane^†; hydroplane; aerodrome; air balloon, pilot balloon, fire balloon, dirigible, zeppelin; aerostat, Montgolfier; kite, parachute.    jet plane, rocket plane, jet liner, turbojet, prop-jet, propeller plane; corporate plane, corporate jet, private plane, private aviation; airline, common carrier; fighter, bomber, fighter-bomber, escort plane, spy plane; supersonic aircraft, subsonic aircraft.    ... show more

Roget 627: method, way, manner, wise, gait, form, mode, fashion, tone, guise; modus operandi, MO; procedure etc. (line of conduct) 692.    path, road, route, course; line of way, line of road; trajectory, orbit, track, beat, tack.    steps; stair, staircase; flight of stairs, ladder, stile; perron^†.    bridge, footbridge, viaduct, pontoon, steppingstone, plank, gangway; drawbridge; pass, ford, ferry, tunnel; pipe etc. 260.    door; gateway etc. (opening) 260; channel, passage, avenue, means of access, approach, adit^†; artery, lane, loan [Scot.], alley, aisle, lobby, corridor; back-door, back-stairs; secret passage; covert way; vennel^†.    roadway, pathway, stairway; express; thoroughfare; highway; turnpike, freeway, royal road, coach road; broad highway, King's highway, Queen's highway; beaten track, beaten path; horse road, bridle road, bridle track, bridle path; walk, trottoir^†, footpath, pavement, flags, sidewalk; crossroad, byroad, bypath, byway; cut; short cut etc. (mid-course) 628; carrefour^†; private road, occupation road; highways and byways; railroad, railway, tram road, tramway; towpath; causeway; canal etc. (conduit) 350; street etc. (abode) 189; speedway.    adv.. how; in what way, in what manner; by what mode; so, in this way, after this fashion.    one way or another, anyhow; somehow or other etc. (instrumentality) 631; by way of; via; in transitu [Lat.] etc. 270; on the high road to.    ... show more

Dutch: ponton
Polish: ponton

A float supporting a seaplane.

Polish: pływak