catch fire

verb

"catch-fire" is a 9-letter English headword indexed on PlainSpell.

The verdict

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

Unranked
below top-frequency English
10
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - To become engulfed in flames, to combust.

Corpus desk

Index EN-catch-fire · catch fire · English

catch fire · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 10 letters
  • VOW-3 3 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "C" 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 catch fire
PropertyValue
Headwordcatch fire
LanguageEnglish
Part of speechVerb
Letters10
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “catch fire” in English

catch fireranks outside the top 100,000 English headwords, in the long tail of specialist, archaic, or seldom-used vocabulary, exactly the territory where a reader stops mid-sentence to double-check spelling.

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

Rare enough to double-check

catch fire is uncommon English outside the top frequency list, classed as averb. Rarity is why readers land here mid-draft. 3 senses are on record.

Zero misspellings are on record for catch fire in our index, which points to an orthography that plays by predictable English rules. This entry stands alone in our confusable dataset, suggesting its spelling stands apart enough that readers rarely confuse it with something else.

This entry's etymology isn't recorded, so its spelling is easiest to reason about phoneme by phoneme, absent a documented history. The correct English form is catch fire, spelled C-A-T-C-H- -F-I-R-E.

Definition

  1. 1
    To become engulfed in flames, to combust.
  2. 2
    To become very popular or widespread; to take off.
  3. 3
    To be inspired by passion or zeal.

Recorded use

Wiktionary examples

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

  1. Ships' logs noted observations of the northern lights as far south as the Caribbean, and telegraph systems across the world were disrupted as electrical currents were induced in the copper lines. Several telegraph operators received electric shocks and some telegraph stations even caught fire.
  2. The news caught fire through the school, and Layla found herself — a mere first-year student at the secondary school — the center of attention and admiration.

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 "catch fire"?
"catch fire" is spelled C-A-T-C-H- -F-I-R-E.
What does "catch fire" mean?
As a verb, "catch fire" means: To become engulfed in flames, to combust.
What language does "catch fire" come from?
"catch fire" 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