derailer.
One who, or that which, derails.
Meaning & usage
One who, or that which, derails.
One who, or that which, derails. Synonym of derail: A device placed on railway tracks in order to cause a train to derail.
Alternative spelling of derailleur.
Where this word comes from
From derail + -er. Sense 2 is an Anglicization of French dérailleur. Doublet of derailleur.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.