kestrel

/ˈkɛstɹəl/

//ˈkɛstɹəl// noun

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

The verdict

“kestrel” is uncommon English (frequency #54,882 among 9,255 “K” headwords), classed as a noun. The kind of spelling people second-guess.

#54,882
frequency rank, English
9,255
“K” headwords

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Any of various small falcons of the genus Falco that hover while hunting.

Key facts for kestrel
PropertyValue
Headwordkestrel
LanguageEnglish
Part of speechNoun
IPA/ˈkɛstɹəl/
Letters7
Frequency rank#54,882
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “kestrel” sits in English frequency

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right). kestrel lands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Rare enough to double-check

kestrel is uncommon English at frequency #54,882 among 9,255 “K” headwords, classed as anoun, transcribed /ˈkɛstɹəl/. Rarity is why readers land here mid-draft. 2 senses are on record.

No generated misspelling entries exist for kestrel in our index, suggesting the orthography follows predictable English patterns. Our dataset records no confusable match here, since no other headword is close enough in sound or shape to pair with it.

Etymologically, the entry records: From Middle English castrel (“staniel, bird of prey”), from Middle French cresserelle, crecerelle (“bird of prey”), usually assumed to be from crecelle (“rattle, wooden reel”) (modern crécelle), of obscure origin. Cognates possibly include: Medieval Latin c… The correct English form is kestrel, spelled K-E-S-T-R-E-L.

Definition

  1. 1
    Any of various small falcons of the genus Falco that hover while hunting.
  2. 2
    A common kestrel (Falco tinnunculus).

Etymology

From Middle English castrel (“staniel, bird of prey”), from Middle French cresserelle, crecerelle (“bird of prey”), usually assumed to be from crecelle (“rattle, wooden reel”) (modern crécelle), of obscure origin. Cognates possibly include: Medieval Latin clisterella f, French crécerelle f and cristel m, Neapolitan castariello m and crestariello m, all sharing the same meaning. Derivation from the assumed Vulgar Latin *crepicella, *crepitacillum, a diminutive of crepitāculum, from crepitāre (“to crackle”) is difficult to explain from a morphological point of view. Instead, possibly from a root *krek-, *krak- (“to crack, rattle, creak, emit a bird cry”), from Middle Dutch crāken (“to creak, crack”), from Old Dutch *krakōn (“to crack, creak, emit a cry”), from Proto-West Germanic *krakōn, from Proto-Germanic *krakōną (“to emit a cry, shout”), from Proto-Indo-European *gerg- (“to shout”). Cognate with Old High German krahhōn (“to make a sound, crash”), Old English cracian (“to resound”), French craquer (“to emit a repeated cry, used of birds”). More at creak, crack.

Synonyms

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); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "kestrel"?
"kestrel" is spelled K-E-S-T-R-E-L. The IPA pronunciation is /ˈkɛstɹəl/.
What does "kestrel" mean?
As a noun, "kestrel" means: Any of various small falcons of the genus Falco that hover while hunting.
How do you pronounce "kestrel"?
The IPA (International Phonetic Alphabet) transcription for "kestrel" is /ˈkɛstɹəl/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "kestrel"?
From Middle English castrel (“staniel, bird of prey”), from Middle French cresserelle, crecerelle (“bird of prey”), usually assumed to be from crecelle (“rattle, wooden reel”) (modern crécelle), of obscure origin. Cognates possibly include: Mediev... See the full etymology section above for more details.
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 “kestrel”

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

  • The one correct English spelling is K-E-S-T-R-E-L - every other letter order is a misspelling in standard orthography.
  • Say it as /ˈkɛstɹəl/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Browse more English words and confusable pairs in the same reference. English words

Other uncommon English words near this rank

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