Word.ws English Dictionary

derailer

Syllables: de·rail·erUK/dɪˈɹeɪlə/US/dəˈɹeɪləɹ/

derailer noun: one who, or that which, derails. Also the alternative spelling of derailleur.

Noun

derailer (plural derailers)

  1. One who, or that which, derails.
    1. Synonym of derail: A device placed on railway tracks in order to cause a train to derail.

Also used as

derailer is also the alternative spelling of derailleur.

Synonyms of derailer

Forms of derailer

pluralderailers

Origin of derailer

From derail + -er. Sense 2 is an Anglicization of French dérailleur. Doublet of derailleur.

Words that rhyme with derailer

9 more rhymesFewer rhymes

Questions about derailer

What does derailer mean?
Derailer means one who, or that which, derails.
What part of speech is derailer?
Derailer is a noun.
How do you pronounce derailer?
Derailer is pronounced /dɪˈɹeɪlə/ (UK).
What is the plural of derailer?
The plural of derailer is derailers.

Words near derailer in the dictionary

  1. deraigning
  2. deraigns
  3. derail
  4. derailable
  5. derailed
  6. derailer
  7. derailers
  8. derailing
  9. derailings
  10. derailleur
  11. derailleur hanger

Source and license

Adapted from Wiktionary: derailer (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:

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