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water-bus

American  
[waw-ter-buhs, wot-er-] / ˈwɔ tərˌbʌs, ˈwɒt ər- /

noun

plural

water-buses, water-busses
  1. vaporetto.

  2. any small ship or boat serving as a passenger shuttle.


Etymology

Origin of water-bus

First recorded in 1925–30