boast

/bəʊst/

//bəʊst// noun

"boast" is a 5-letter English headword indexed on PlainSpell.

The verdict

“boast” is a moderately-common English word, ranked #14,705 in English word frequency and used as a noun.

#14,705
frequency rank, English
5
letters
6
tracked misspellings
20
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A brag; ostentatious positive appraisal of oneself.

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

boast vs bot
60% similar
boast vs boys
60% similar
boast vs boss
60% similar

Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).

Key facts for boast
PropertyValue
Headwordboast
LanguageEnglish
Part of speechNoun
IPA/bəʊst/
Letters5
Frequency rank#14,705
Misspellings tracked6
Confusable pairs20
SourceWiktionary (kaikki.org)

Where “boast” 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). boast lands here:

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

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

Spelling & Dictionary Insight

The English entry for boast is 5 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /bəʊst/. Corpus data places it at rank #14,705 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. Wiktionary records 3 distinct senses for this headword, so context determines which meaning a reader should apply.

Our generated misspelling index lists 6 likely wrong-spelling variants for boast, with forms such as "baost", "bboast", and "boasst". Each variant is a distinct typo pattern an edit-distance generator flags, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution. It also participates in 20 confusable-pair relationships, "bot", "boys", "boss", and more, since the words sound or look close enough that writers reach for the wrong one mid-sentence.

Etymologically, the entry records: From Middle English bosten, from bost (“boast, glory, noise, arrogance, presumption, pride, vanity”), probably of North Germanic origin, ultimately from Proto-Germanic *bausuz (“inflated, swollen, puffed up, proud, arrogant, bad”). Cognate with Scots bost, … The correct English form is boast, spelled B-O-A-S-T.

Definition

  1. 1
    A brag; ostentatious positive appraisal of oneself.
  2. 2
    Something that one brags about.
  3. 3
    A shot where the ball is driven off a side wall and then strikes the front wall.

Etymology

From Middle English bosten, from bost (“boast, glory, noise, arrogance, presumption, pride, vanity”), probably of North Germanic origin, ultimately from Proto-Germanic *bausuz (“inflated, swollen, puffed up, proud, arrogant, bad”). Cognate with Scots bost, boist (“to threaten, brag, boast”), Anglo-Norman bost (“ostentation”) (from Germanic). Related to Norwegian baus (“proud, bold, daring”), dialectal German baustern (“to swell”), German böse (“evil, bad, angry”), Dutch boos (“evil, wicked, angry”), West Frisian boas (“bad, wicked, angry, shrewd, clever”). Compare also dialectal Norwegian bausta, busta (“to rush onward, make a noise”). Possible doublet of boost. Compare typologically puffy, Russian напы́щенный (napýščennyj), наду́тый (nadútyj).

This word in other languages

Common misspellings

Also misspelled as: baost,bboast,boasst,boastt,bosat,obast

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of boast - 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.

baost2bboast1boasst1boastt1bosat2obast2
Edit distance from "boast"

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 "boast"?
"boast" is spelled B-O-A-S-T. The IPA pronunciation is /bəʊst/.
What does "boast" mean?
As a noun, "boast" means: A brag; ostentatious positive appraisal of oneself.
What words are commonly confused with "boast"?
"boast" is commonly confused with "bot", "boys", "boss". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "boast"?
The IPA (International Phonetic Alphabet) transcription for "boast" is /bəʊst/. 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 "boast"?
From Middle English bosten, from bost (“boast, glory, noise, arrogance, presumption, pride, vanity”), probably of North Germanic origin, ultimately from Proto-Germanic *bausuz (“inflated, swollen, puffed up, proud, arrogant, bad”). Cognate with Sc... 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 “boast”

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

  • The one correct English spelling is B-O-A-S-T - every other letter order is a misspelling in standard orthography.
  • Say it as /bəʊst/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Don't mix it up with “bot” - see the side-by-side comparison. boast vs bot
  • 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