affirmation

/æfɝˈmeɪʃn/

//æfɝˈmeɪʃn// noun

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

"affirmation" is a 11-letter English headword indexed on PlainSpell.

The verdict

“affirmation” is a moderately-common English word, ranked #21,128 in English word frequency and used as a noun.

#21,128
frequency rank, English
11
letters
15
tracked misspellings
2
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - That which is affirmed; a declaration that something is true.

Visual similarity to commonly confused words

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

affirmation vs affirmative
82% similar
affirmation vs affiliation
82% similar

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

Key facts for affirmation
PropertyValue
Headwordaffirmation
LanguageEnglish
Part of speechNoun
IPA/æfɝˈmeɪʃn/
Letters11
Frequency rank#21,128
Misspellings tracked15
Confusable pairs2
SourceWiktionary (kaikki.org)

Where “affirmation” 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). affirmation 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 affirmation is 11 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /æfɝˈmeɪʃn/. Corpus data places it at rank #21,128 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 15 likely wrong-spelling variants for affirmation, with forms such as "affimration", "affiramtion", and "affirmaiton". 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 2 confusable-pair relationships, "affirmative", "affiliation", where similar look or sound leads writers to substitute one word for another in context.

Etymologically, the entry records: From Old French afermacion, from Latin affirmare (“to assert”). Doublet of affirmatio. The correct English form is affirmation, spelled A-F-F-I-R-M-A-T-I-O-N.

Definition

  1. 1
    That which is affirmed; a declaration that something is true.
  2. 2
    A solemn pledge (to tell the truth, to bear allegiance, etc.), legally equivalent to an oath, taken by people who are forbidden to take a religious oath (such as Quakers) or otherwise prefer not to do so.
  3. 3
    A form of self-forced meditation or repetition; autosuggestion.

Etymology

From Old French afermacion, from Latin affirmare (“to assert”). Doublet of affirmatio.

Synonyms

assertion

This word in other languages

afirmación(Español)affirmation(Français)Bestätigung(Deutsch)

Common misspellings

Also misspelled as: affimration,affiramtion,affirmaiton,affirmasion,affirmatino,affirmationn,affirmatoin,affirmattion,affirmmation,affirmtaion,affirrmation,affrimation,afifrmation,afirmation,fafirmation

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of affirmation - counted as single-character edits (an insertion, a deletion, or a substituted letter). The larger the bar, the easier the typo is to spot; one-edit slips are the ones that sneak past readers.

affimration2affiramtion2affirmaiton2affirmasion1affirmatino2affirmationn1affirmatoin2affirmattion1
Edit distance from "affirmation"

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 "affirmation"?
"affirmation" is spelled A-F-F-I-R-M-A-T-I-O-N. The IPA pronunciation is /æfɝˈmeɪʃn/.
What does "affirmation" mean?
As a noun, "affirmation" means: That which is affirmed; a declaration that something is true.
What words are commonly confused with "affirmation"?
"affirmation" is commonly confused with "affirmative", "affiliation". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "affirmation"?
The IPA (International Phonetic Alphabet) transcription for "affirmation" is /æfɝˈmeɪʃn/. 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 "affirmation"?
From Old French afermacion, from Latin affirmare (“to assert”). Doublet of affirmatio. 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 “affirmation”

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

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