# tailback

> English word · Noun · IPA /ˈteɪlˌbæk/ · frequency rank #66,332

## Definitions
1. A line of motor vehicles causing or the result of traffic congestion or a traffic jam.
2. A running back or halfback who lines up furthest to the rear in an I formation.

## Etymology
From tail + back.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/tailback