advance guard


noun

a body of troops going before the main force to clear the way, guard against surprise, etc.

Origin of advance guard

First recorded in 1750–60
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for advance guard

advance guard


noun

a military unit sent ahead of a main body to find gaps in enemy defences, clear away minor opposition, and prevent unexpected contact
a temporary military detachment sent ahead of a force to prepare for a landing or other operation, esp by making reconnaissance
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