[ too-uhn-froh ]
/ ˈtu ənˈfroʊ /
back-and-forth: to-and-fro motion.
noun, plural to-and-fros.
a continuous or regular movement backward and forward; an alternating movement, flux, flow, etc.: the to-and-fro of the surf.
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Origin of to-and-fro
First recorded in 1820–30; adj. and noun use of adv. phrase to and (fro) (def. 2)
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
British Dictionary definitions for to-and-fro
to and fro
adjective, adverb to-and-fro
back and forth
here and there
Derived forms of to and frotoing and froing, noun
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
Idioms and Phrases with to-and-fro
to and fro
Back and forth, as in He was like a caged animal, pacing to and fro. Strictly speaking, to means “toward” and fro “away from,” but this idiom is used more vaguely in the sense of “moving alternately in different directions.” [First half of 1300s]
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.