Word.ws English Dictionary

tailfin

tailfin noun: a fin at the tail of a fish, caudal fin.

Noun

tailfin (plural tailfins)

  1. A fin at the tail of a fish, caudal fin
  2. A fin on the tail of an aircraft, vertical stabilizer
  3. A fin-like projection at the rear of a car, common on American cars of the 1950s.

Forms of tailfin

pluraltailfins
alternative formtail fin

Origin of tailfin

From tail + fin.

Questions about tailfin

What does tailfin mean?
Tailfin means a fin at the tail of a fish, caudal fin.
What part of speech is tailfin?
Tailfin is a noun.
What is the plural of tailfin?
The plural of tailfin is tailfins.

Words near tailfin in the dictionary

  1. tailers
  2. tailfan
  3. tailfans
  4. tailfeather
  5. tailfeathers
  6. tailfin
  7. tailfins
  8. tailfirst
  9. tailflip
  10. tailflipping
  11. tailflips

Source and license

Adapted from Wiktionary: tailfin (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.

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