[too-uh n-froh]


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.

Origin of to-and-fro

First recorded in 1820–30; adj. and noun use of adv. phrase to and (fro)(def 2) Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for to-and-fro

Contemporary Examples of to-and-fro

Historical Examples of to-and-fro

  • 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.