sidetrack

[ sahyd-trak ]
/ ˈsaɪdˌtræk /

verb (used with or without object)

to move from the main track to a siding, as a train.
to move or distract from the main subject or course.

noun

any railroad track, other than a siding, auxiliary to the main track.

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Origin of sidetrack

An Americanism dating back to 1825–35; side1 + track
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for sidetrack

British Dictionary definitions for sidetrack

sidetrack
/ (ˈsaɪdˌtræk) /

verb

to distract or be distracted from a main subject or topic

noun

US and Canadian a railway siding
the act or an instance of sidetracking; digression
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