# tailbone

> English word · Noun · IPA /ˈteɪlˌbəʊn/ · frequency rank #84,815

## Definitions
1. The final fused vertebrae at the base of the spine; the coccyx.

## Etymology
From tail + bone.

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