Word.ws English Dictionary

tailbone

UK/ˈteɪlˌbəʊn//ˈteɪlˌboʊn/

tailbone noun: the final fused vertebrae at the base of the spine; the coccyx.

Noun

tailbone (plural tailbones)

  1. (informal) The final fused vertebrae at the base of the spine; the coccyx.

Forms of tailbone

pluraltailbones

Origin of tailbone

From tail + bone.

Questions about tailbone

What does tailbone mean?
Tailbone means the final fused vertebrae at the base of the spine; the coccyx.
What part of speech is tailbone?
Tailbone is a noun.
How do you pronounce tailbone?
Tailbone is pronounced /ˈteɪlˌbəʊn/ (UK).
What is the plural of tailbone?
The plural of tailbone is tailbones.

Words near tailbone in the dictionary

  1. tailbeats
  2. tailblock
  3. tailblocks
  4. tailboard
  5. tailboards
  6. tailbone
  7. tailbones
  8. tailboom
  9. tailbooms
  10. tailbud
  11. tailbuds

Source and license

Adapted from Wiktionary: tailbone (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Pronunciation audio from Wikimedia Commons, each file under its own free license: LL-Q1860 (eng)-Flame, not lame-tailbone.wav.

Cite this entry: “tailbone.” Word.ws, https://word.ws/tailbone. Based on Wiktionary, CC BY-SA 4.0.