bivouac

/ˈbɪv.u.æk/

//ˈbɪv.u.æk// noun

By · According to Wiktionary data (CC BY-SA) ·

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

The verdict

“bivouac” is uncommon English (frequency #69,687 among 4,121 “B” headwords), classed as a noun. The kind of spelling people second-guess.

#69,687
frequency rank, English
4,121
“B” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - An encampment for the night, usually without tents or covering.

Corpus desk

Index EN-bivouac · bivouac · English

bivouac · rank #69,687 · 0 variants · 0 confusables

  • FREQ-RARE #69,687
  • LEN-LONG 7 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 4,121
  • PHOTO-FINISH birk

Nearest frequency peer: birk (-1 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 “bivouac”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

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

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for bivouac
PropertyValue
Headwordbivouac
LanguageEnglish
Part of speechNoun
IPA/ˈbɪv.u.æk/
Letters7
Frequency rank#69,687
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “bivouac” in English

This scale runs from the tiny cluster of words that carry ordinary speech (left) to the long tail of words almost nobody reaches for (right).bivouacfalls 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: “birk” (#69,686), “bix” (#69,688), “blarney” (#69,689). Among 4,121 “B” headwords, “bivouac” is #69,687. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

bivouac is uncommon English at frequency #69,687 among 4,121 “B” headwords, classed as anoun, transcribed /ˈbɪv.u.æk/. Rarity is why readers land here mid-draft. 5 senses are on record.

bivouac has no tracked misspelling variants, since its letter sequence doesn't invite the usual edit-distance slips. Our confusable-pair dataset has no match for it, which tends to mean the word is visually distinctive enough to stand on its own.

Etymologically, the entry records: Unadapted borrowing from French bivouac (earlier biouac, bivac), from Alemannic German Biiwacht (“reinforcements of guard or town watch”), from bii- + Wacht (“watch, guard”). The correct English form is bivouac, spelled B-I-V-O-U-A-C.

Definition

  1. 1
    An encampment for the night, usually without tents or covering.
  2. 2
    Any temporary encampment.
  3. 3
    A temporary shelter constructed generally for a few nights.
  4. 4
    The watch of a whole army by night, when in danger of surprise or attack.
  5. 5
    A structure formed by migratory ants out of their own bodies to protect the queen and larvae.

Recorded use

Wiktionary examples

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

  1. Townsend hare inhabit this area, particularly above the cabin, and a skier is likely to have one explode from a tree well and disappear into the whiteness as he skis by. Life is a constant bivouac for them -- they spend days huddled in tree wells during storms -- but I suspect they are as content and warm in their luxurious coats as we are in a cabin.
  2. Behold the Mansion reared by Dædal Jack! See the Malt stored in many a plethoric sack, In the proud cirque of Juan's bivouac!

Etymology

Unadapted borrowing from French bivouac (earlier biouac, bivac), from Alemannic German Biiwacht (“reinforcements of guard or town watch”), from bii- + Wacht (“watch, guard”).

This word in other languages

vivac(Español)bivouac(Français)Biwak(Deutsch)

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 "bivouac"?
"bivouac" is spelled B-I-V-O-U-A-C. The IPA pronunciation is /ˈbɪv.u.æk/.
What does "bivouac" mean?
As a noun, "bivouac" means: An encampment for the night, usually without tents or covering.
How do you pronounce "bivouac"?
The IPA (International Phonetic Alphabet) transcription for "bivouac" is /ˈbɪv.u.æk/. 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 "bivouac"?
Unadapted borrowing from French bivouac (earlier biouac, bivac), from Alemannic German Biiwacht (“reinforcements of guard or town watch”), from bii- + Wacht (“watch, guard”). 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 "bivouac", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 7 letters (nearest by frequency rank).

blarney#69,689borscht#69,694boxwood#69,697Calista#69,711

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

Source: FrequencyWords open word-frequency list