birr

/bɜː/

//bɜː// noun

"birr" is a 4-letter English headword indexed on PlainSpell.

The verdict

“birr” is uncommon English (frequency #84,030 among 4,121 “B” headwords), classed as a noun. The kind of spelling people second-guess.

#84,030
frequency rank, English
4,121
“B” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Strength, vigor, energy.

Corpus desk

Index EN-birr · birr · English

birr · rank #84,030 · 0 variants · 0 confusables

  • FREQ-RARE #84,030
  • LEN-MID 4 letters
  • VOW-1 1 vowel
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 4,121
  • PHOTO-FINISH birchwood

Nearest frequency peer: birchwood (-2 rank slots)

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.

Long-tail ranks near “birr”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

What this shows Long-tail view: where “birr” sits against similarly uncommon English ranks.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for birr
PropertyValue
Headwordbirr
LanguageEnglish
Part of speechNoun
IPA/bɜː/
Letters4
Frequency rank#84,030
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “birr” in English

Word frequency stretches from the small set of words we reach for constantly (left) out to the long tail barely used once in a while (right).birrfalls in this rarity band:

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

The axis is logarithmic, with each marked tick roughly ten times rarer than the last. Rare peers in the same band: “birchwood” (#84,028), “bioremediation” (#84,027), “bioreactor” (#84,026). Among 4,121 “B” headwords, “birr” is #84,030. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

birr is uncommon English at frequency #84,030 among 4,121 “B” headwords, classed as anoun, transcribed /bɜː/. Rarity is why readers land here mid-draft. 4 senses are on record.

We couldn't generate a plausible misspelling set for birr, suggesting the orthography follows predictable English patterns. Our dataset records no confusable match here, which tends to mean the word is visually distinctive enough to stand on its own.

Etymologically, the entry records: From Middle English bir (“favorable or strong wind”), from Old English byre (“strong wind, storm”); cognate with Norwegian bør, Icelandic byrr (“sailing winds”), Albanian borë (“snow”), and Polish burza (“storm, thunderstorm”). The correct English form is birr, spelled B-I-R-R.

Definition

  1. 1
    Strength, vigor, energy.
  2. 2
    The force of movement; rush, impetus, momentum, driving force.
  3. 3
    A whirring noise.
  4. 4
    A strong trilling.

Recorded use

Wiktionary examples

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

  1. Ye'll be sae kind as let me see How this same bird o' yours can flee. T'oblige ye, friend, I winna stand — Syne loos'd the falcon frae his hand. Unhooded, up she sprang wi' birr, While baith stood staring after her.
  2. Then steer thro' life wi' birr an' vigour

Etymology

From Middle English bir (“favorable or strong wind”), from Old English byre (“strong wind, storm”); cognate with Norwegian bør, Icelandic byrr (“sailing winds”), Albanian borë (“snow”), and Polish burza (“storm, thunderstorm”).

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 "birr"?
"birr" is spelled B-I-R-R. The IPA pronunciation is /bɜː/.
What does "birr" mean?
As a noun, "birr" means: Strength, vigor, energy.
How do you pronounce "birr"?
The IPA (International Phonetic Alphabet) transcription for "birr" is /bɜː/. 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 "birr"?
From Middle English bir (“favorable or strong wind”), from Old English byre (“strong wind, storm”); cognate with Norwegian bør, Icelandic byrr (“sailing winds”), Albanian borë (“snow”), and Polish burza (“storm, thunderstorm”). 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.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "birr", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 4 letters (nearest by frequency rank).

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

Source: FrequencyWords open word-frequency list