boundary

/ˈbaʊndɹi/

//ˈbaʊndɹi// noun

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

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

The verdict

“boundary” has 12 generated spelling variants in the English index at frequency #5,763. The variants make it a useful spelling check.

#5,763
frequency rank, English
4,121
“B” headwords
12
tracked misspellings

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The dividing line or location between two areas.

Corpus desk

Index EN-boundary · boundary · English

boundary · rank #5,763 · 12 variants · 0 confusables

  • FREQ-COMMON #5,763
  • LEN-LONG 8 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-MID 12 variants
  • BOOK-MID 4,121
  • PHOTO-FINISH bend

Nearest frequency peer: bend (-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.

Rank peers near misspelling magnet “boundary”

Same rarity band: useful when a typo lands on a peer headword

corpus weight

What this shows “boundary” sits among these FrequencyWords peers; misspelling depth is tracked separately in the edit-distance chart.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for boundary
PropertyValue
Headwordboundary
LanguageEnglish
Part of speechNoun
IPA/ˈbaʊndɹi/
Letters8
Frequency rank#5,763
Misspellings tracked12
Confusable pairs0
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “boundary”

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).boundarylands here:

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

Ticks step logarithmically, so each one marks a roughly tenfold drop in how often the word turns up. Same rarity band neighbours include “bend” (#5,762), “breach” (#5,764), “ba” (#5,761). Among 4,121 “B” headwords, “boundary” is #5,763. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 12 spelling variants around boundary (IPA /ˈbaʊndɹi/), anoun. Corpus frequency is #5,763 among 4,121 “B” headwords. Wiktionary lists 6 senses, so context still picks the gloss.

Our generated misspelling index lists 12 likely wrong-spelling variants for boundary, with forms such as "bboundary", "bonudary", and "boudnary". Every one of these variants traces to a single-character edit -- an added or dropped letter, a swapped consonant, or a vowel swap -- the kind of slip a spell-checker is built to catch. No confusable counterpart is on file for this word, which tends to mean the word is visually distinctive enough to stand on its own.

Etymologically, the entry records: From bound + -ary, Old French, from Latin. The correct English form is boundary, spelled B-O-U-N-D-A-R-Y.

Definition

  1. 1
    The dividing line or location between two areas.
  2. 2
    The bounds, confines, or limits between immaterial things (such as one’s comfort zone, privacy, or professional sphere and the realm beyond).
  3. 3
    An edge or line marking an edge of the playing field.
  4. 4
    An event whereby the ball is struck and either touches or passes over a boundary (with or without bouncing), usually resulting in an award of 4 (four) or 6 (six) runs respectively for the batting team.
  5. 5
    (of a set) The set of points in the closure of a set S, not belonging to the interior of that set.
  6. 6
    Commission paid by a bus or jeepney driver to a public transportation operator for taking passengers, or the excess collected fares taken as daily wage.

Recorded use

Wiktionary examples

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

  1. So this was my future home, I thought![…]Backed by towering hills, the but faintly discernible purple line of the French boundary off to the southwest, a sky of palest Gobelin flecked with fat, fleecy little clouds, it in truth looked a dear little city; the city of one's dreams.
  2. City or national boundaries are locations of economic opportunity, especially if the existence of the border is itself the source of a monopoly situation that favors one side over the other (Krakover, 1997).

Etymology

From bound + -ary, Old French, from Latin.

This word in other languages

frontera(Español)frontière(Français)Grenze(Deutsch)fronteira(Português)

Common misspellings

Also misspelled as:

  • bboundary
  • bonudary
  • boudnary
  • bounadry
  • boundarry
  • boundaryy
  • boundayr
  • bounddary
  • boundray
  • bounndary
  • buondary
  • obundary

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of boundary - expressed in single-character edits (insert, delete, or swap one letter). Bigger bars stand out at a glance; a one-edit slip is the hardest to catch.

bboundary1bonudary2boudnary2bounadry2boundarry1boundaryy1boundayr2bounddary1
Edit distance from "boundary"

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 "boundary"?
"boundary" is spelled B-O-U-N-D-A-R-Y. The IPA pronunciation is /ˈbaʊndɹi/.
What does "boundary" mean?
As a noun, "boundary" means: The dividing line or location between two areas.
What are common misspellings of "boundary"?
Common misspellings include "bboundary", "bonudary", "boudnary", "bounadry", "boundarry". The correct spelling is "boundary".
How do you pronounce "boundary"?
The IPA (International Phonetic Alphabet) transcription for "boundary" is /ˈbaʊndɹi/. 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 "boundary"?
From bound + -ary, Old French, from Latin. 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 "boundary", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 8 letters (nearest by frequency rank).

activist#5,753courtesy#5,778switched#5,740engaging#5,788

Similar misspelling depth

Headwords with a similar count of attested misspellings (12 here; floor ≥5).

homework12 variantsinfected12 variantspermitted12 variantsduration12 variants

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

Source: FrequencyWords open word-frequency list