in single file.
Origin of Indian file
An Americanism dating back to 1750–60
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for indian file
Historical Examples of indian file
From time to time the friends were elbowed by students shouting popular refrains and walking in Indian-file.A Romance of Youth, Complete
see single file.
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.