Dictionary![]() ![]() wa•ter-busPronunciation: (wô'tur-bus", wot'ur-), [key] —n., —pl. -bus•es, -bus•ses. 1. vaporetto. 2. any small ship or boat serving as a passenger shuttle. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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