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to-and-fro

[too-uh n-froh]
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adjective
  1. back-and-forth: to-and-fro motion.
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noun, plural to-and-fros.
  1. 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. 2018

Examples from the Web for to-and-fro

Contemporary Examples

Historical Examples

  • What is that to-and-fro between one who knows and one who does not?

    Herein is Love

    Reuel L. Howe

  • With this was sent a whip, thus establishing a to-and-fro communication.

  • The to-and-fro movement of the slide is effected in the following manner.

    Sharps and Flats

    John Nevil Maskelyne

  • We will suppose our pendulum to execute one to-and-fro movement in a second.

  • Back again he came, to-and-fro like the pendulum of a clock.