towboat

[ toh-boht ]
/ ˈtoʊˌboʊt /

noun

a diesel-powered or steam-powered boat used especially on inland waterways to push groups of barges lashed to it in front or on one side or both.

Origin of towboat

First recorded in 1805–15; tow1 + boat
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for towboat

towboat

/ (ˈtəʊˌbəʊt) /

noun

another word for tug (def. 5)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012