noun · verb · 8 senses · updated from the 2026-07-25 local source snapshot
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Pronunciation
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General-American:/ˌdəˈɹeɪ.əl/
General-American:/ˌdiːˈɹeɪ.əl/
US:Recorded audio is listed in the source snapshot.
rhymes with -eɪl
CMU ARPABET:D IH0 R EY1 L
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
noun
Meaning 1
Synonym of derailer: A device placed on railway tracks in order to cause a train to derail.
Definition source: English Wiktionary via Wiktextract
Examples
The derail was placed deliberately so that the train would fall into the river.
Meaning relationships
Synonyms: derailer
Antonyms: none provided
2
noun
Meaning 2
An instance of diverting a conversation or debate from its original topic.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
3
verb
Meaning 3
To cause to come off the tracks.
Definition source: English Wiktionary via Wiktextract
Usage: transitive
Examples
The train was destroyed when it was derailed by the collision.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
4
verb
Meaning 4
To come off the tracks.
Definition source: English Wiktionary via Wiktextract
Usage: intransitive
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
5
verb
Meaning 5
To deviate from the previous course or direction.
Definition source: English Wiktionary via Wiktextract
Usage: figuratively, intransitive
Examples
The conversation derailed once James brought up politics.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
6
verb
Meaning 6
To cause to deviate from a set course or direction.
Definition source: English Wiktionary via Wiktextract
Usage: figuratively, transitive
Examples
The protesting students derailed the professor's lecture.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
7
verb
Meaning 7
run off or leave the rails
Definition source: Princeton WordNet 3.0
Examples
the train derailed because a cow was standing on the tracks
Meaning relationships
Synonyms: jump
Antonyms: none provided
Broader terms: travel, go, move, locomote
8
verb
Meaning 8
cause to run off the tracks
Definition source: Princeton WordNet 3.0
Examples
they had planned to derail the trains that carried atomic waste