crash course

noun

"crash-course" is a 11-letter English headword indexed on PlainSpell.

The verdict

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

Unranked
below top-frequency English
12
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A quick, intense course of learning, especially one which is informal or hurried.

Corpus desk

Index EN-crash-course · crash course · English

crash course · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 12 letters
  • VOW-4 4 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 crash course
PropertyValue
Headwordcrash course
LanguageEnglish
Part of speechNoun
Letters12
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “crash course” in English

crash coursefalls 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

crash course is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "A quick, intense course of learning, especially one which is informal or hurried.".

crash course doesn't appear in our generated misspelling index, since its letter pattern doesn't lend itself to common typo substitutions. This entry stands alone in our confusable dataset, which typically means the spelling is too distinctive to be mistaken for another word.

Our source data has no etymology on file for this entry, so its spelling is best explained by sound-to-letter mapping rather than etymology. The correct English form is crash course, spelled C-R-A-S-H- -C-O-U-R-S-E.

Definition

  1. 1
    A quick, intense course of learning, especially one which is informal or hurried.

Recorded use

Wiktionary examples

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

  1. He got a crash course in babysitting when his sister dropped off his nephew for the afternoon.
  2. Students were essentially given a ‘crash course’ in how to be a lexicographer over a number of tutorial classes, beginning with lexicographical data collection.

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 "crash course"?
"crash course" is spelled C-R-A-S-H- -C-O-U-R-S-E.
What does "crash course" mean?
As a noun, "crash course" means: A quick, intense course of learning, especially one which is informal or hurried.
What language does "crash course" come from?
"crash course" is a English word. PlainSpell covers definitions, pronunciations, and spelling data across English, Spanish, Portuguese, French, and German.
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