run riot

verb

"run-riot" is a 7-letter English headword indexed on PlainSpell.

The verdict

“run riot” is uncommon English (outside the top frequency list), classed as a verb. The kind of spelling people second-guess.

Unranked
below top-frequency English
8
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - To act in an uncontrolled, unbridled manner.

Corpus desk

Index EN-run-riot · run riot · English

run riot · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-LONG 8 letters
  • VOW-3 3 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "R" thin
  • PHOTO-UNK Peer pending

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Key facts for run riot
PropertyValue
Headwordrun riot
LanguageEnglish
Part of speechVerb
Letters8
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “run riot” in English

run riotfalls outside the top-100,000 ranked English words, the long-tail zone of technical, archaic, or low-frequency vocabulary, exactly where readers second-guess spellings most.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

run riot is uncommon English outside the top frequency list, classed as averb. Rarity is why readers land here mid-draft. 2 senses are on record.

We couldn't generate a plausible misspelling set for run riot, a straightforward case of a spelling with little room for common typos. It is not paired with a close-neighbour confusable in our dataset, which tends to mean the word is visually distinctive enough to stand on its own.

This entry carries no recorded etymology, so any spelling logic here comes from how the word's sounds map to letters, not a documented origin story. The correct English form is run riot, spelled R-U-N- -R-I-O-T.

Definition

  1. 1
    To act in an uncontrolled, unbridled manner.
  2. 2
    To be uncontrollable.

Recorded use

Wiktionary examples

These source excerpts show how run riot appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. No wonder, then, that against a background of surging aggressive prosperity, South Wales built up during the last half of the nineteenth century a local railway system of great density and complexity, in which almost every company competed with every other in its area, and in which working agreements, running powers and strategic junctions ran riot across…
  2. All is well until Treorchy, where the platform is swamped by teenagers who have been attending an event. Around four dozen unescorted 12 to 16 year-olds swarm aboard and begin to run riot through the train. Their behaviour is appalling and the presence of CCTV no deterrent.

This word in other languages

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "run riot"?
"run riot" is spelled R-U-N- -R-I-O-T.
What does "run riot" mean?
As a verb, "run riot" means: To act in an uncontrolled, unbridled manner.
What language does "run riot" come from?
"run riot" is a English word. PlainSpell's reference spans five languages -- English, Spanish, Portuguese, French, and German -- with definitions, pronunciations, and spelling data for each.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list