cool down

verb

"cool-down" is a 8-letter English headword indexed on PlainSpell.

The verdict

“cool down” is outside the top-ranked English vocabulary, used as a verb - the kind of word writers most often double-check.

Unranked
below top-frequency English
9
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - To become cooler; to be reduced in temperature.

Key facts for cool down
PropertyValue
Headwordcool down
LanguageEnglish
Part of speechVerb
Letters9
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “cool down” sits in English frequency

cool down falls 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.

Spelling & Dictionary Insight

The English entry for cool down is 9 letters long, classified as a verb. It sits outside the most-frequent rank tiers, which is often why uncommon words generate more spelling variants per reader. Wiktionary records 5 distinct senses for this headword, so context determines which meaning a reader should apply.

cool down has no tracked misspelling variants, typically a sign the spelling maps closely to how the word sounds. It is not paired with a close-neighbour confusable in our dataset, which usually means its spelling is distinct enough that readers don't reach for a similar-looking word instead.

No documented word history exists for this headword, so its spelling is best read as a straightforward mapping from sound to letter. The correct English form is cool down, spelled C-O-O-L- -D-O-W-N.

Definition

  1. 1
    To become cooler; to be reduced in temperature.
  2. 2
    To become less agitated or excited.
  3. 3
    To decrease in degree or intensity.
  4. 4
    To cause (something) to become cooler; to reduce the temperature of.
  5. 5
    To cause (someone) to become less agitated or excited.

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 "cool down"?
"cool down" is spelled C-O-O-L- -D-O-W-N.
What does "cool down" mean?
As a verb, "cool down" means: To become cooler; to be reduced in temperature.
What language does "cool down" come from?
"cool down" 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.

Using “cool down”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct English spelling is C-O-O-L- -D-O-W-N - every other letter order is a misspelling in standard orthography.
  • Browse more English words and confusable pairs in the same reference. English words
Data Source

Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.

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

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list