back and forth

November 1, 2026 11:44 PM

back and forth (idiom)
/ˌbæk ən ˈfɔːrθ/

Meaning

To move or travel from one place to another and then right back again.
To keep talking or arguing the same point over and over without getting anywhere.
To change your mind again and again between two choices.
To swing or shift in a steady to-and-fro motion.

Synonyms: to and fro, backward and forward, exchange, discussion, oscillation, ping-pong.

Example Sentences

Sarah paced back and forth across the kitchen while she waited for the test results to come through.
The managers went back and forth for weeks over the budget numbers, and still, no one could agree on a final figure.
Mike kept going back and forth about whether to take the new job or stay where he was, changing his mind almost every day.
The old porch swing moved gently back and forth in the evening breeze as they sat and talked.

Etymology and Origin

How the Phrase Came Together

“Back and forth” grew naturally out of everyday English. It simply joins two old words that had been around for centuries: “back,” which pointed toward the starting place, and “forth,” which pointed forward. Speakers put them together to describe the kind of movement that keeps reversing itself—going one way, then the other, over and over.

Where It First Shows Up

The earliest clear printed example comes from England in 1613. That year the clergyman Thomas Jackson published Commentaries upon the Apostles Creede. On page 196 of the first volume, he described sailors who deliberately kept their ships turning in circles so their captives would stay longer at sea:

“lengthning the time by circular and vnnecessarie turnings, backe and forth.”

This is the first known appearance of the exact wording in print.

A Close Earlier Relative

A very similar form, “back and fore,” appears a few decades later. In 1653 Sir Thomas Urquhart’s English translation of Rabelais has a character who “would go back and fore along the foresaid rope.” Other expressions for the same idea, such as “to and fro,” had already been in use since the 1300s, so English speakers had long ways of talking about movement that goes and returns. “Back and forth” simply became the version that stuck.

From Movement to Conversation

For more than three hundred years the phrase almost always described physical motion. Only in the twentieth century did people begin using it as a noun for an ongoing exchange of words that never quite settles. The first recorded example of this newer sense appears in 1941 in the writing of the American author William Alexander Percy. From there it quickly spread to arguments, negotiations, and any discussion that keeps circling without reaching a decision.

Why the Words Run “Backward”

One thing that has always struck people as odd is the order of the words. Logically a person goes forth first and then comes back, so “forth and back” might seem more natural. Yet English settled on “back and forth” and has kept that order ever since. Once a pairing becomes fixed in the language, the reverse version simply sounds wrong, even if it looks more logical on paper. The same thing happened with older phrases like “to and fro.”

A Phrase That Never Left

By the early 1800s the expression was already noted as common everyday speech in New England. From its first appearance in seventeenth-century England it has stayed one of the simplest and most familiar ways in English to talk about any repeated movement between two points—whether someone is walking across a room, traveling between cities, or going around and around the same argument.

Variants

backwards and forwards
to and fro
back-and-forth (noun or adjective)