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addition

Definition, pronunciation, etymology, and usage for the English word. Free spelling reference powered by Wiktionary.

Letters

8 characters

Language

English

word origin

Source

Wiktionary

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Detailed reference entry for the English word "addition", 8-letters, with pronunciation in International Phonetic Alphabet notation, etymology traced through Germanic and Romance roots where applicable, common misspelling variants catalogued from Hunspell error dictionaries, and usage frequency ranked against the top 100,000 English words in the Wordfreq corpus. PlainSpell covers English, Spanish, Portuguese, French, and German spelling with confusable-pair detection that highlights visually and phonetically similar words. This entry for "addition" includes synonyms, antonyms, homophones, and cross-language translation pointers sourced from Wiktionary via the kaikki.org extract. Whether you are verifying the correct spelling of "addition" for academic writing, checking homophone confusion, or exploring etymological origins, this page provides a citation-backed, free reference that requires no sign-up.

addition is aEnglishnoun. It means: The act of adding anything. Pronounced /əˈdɪʃ.ən/. It ranks #1,037 in English word frequency. Often confused with adoption and ambition.

Key facts for addition
PropertyValue
Headwordaddition
LanguageEnglish
Part of speechNoun
IPA/əˈdɪʃ.ən/
Letters8
Frequency rank#1,037
Misspellings tracked10
Confusable pairs9
SourceWiktionary (kaikki.org)

Frequency rank visualization

Position of addition in English word frequency (lower rank = more common)

Source: Wordfreq corpus

Spelling & Dictionary Insight

The English entry for addition is 8 letters long, classified as anoun, and transcribed in the International Phonetic Alphabet as /əˈdɪʃ.ən/. Corpus data places it at rank #1,037 in overall English word frequency, indicating it appears regularly in written and spoken text.Wiktionary records 7 distinct senses for this headword, so context determines which meaning a reader should apply.

Our Hunspell-derived misspelling index lists 10 documented wrong-spelling variants for addition, with forms such as "addiiton", "addision", and "additino". Each variant represents a distinct typo pattern that appears often enough in corpora to be worth flagging, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution.It also participates in 9 confusable-pair relationships, "adoption", "ambition", "audition", and more, where similar look or sound leads writers to substitute one word for another in context.

Etymologically, the entry records: Etymology tree Proto-Indo-European *h₂éd Proto-Italic *ad Proto-Italic *ad- Latin ad- Proto-Indo-European *dʰeh₁- Proto-Indo-European *dʰéh₁tder. Proto-Italic *-ðō Latin -dō Latin addō Latin additiōder. Old French aditionder. Middle English addicioun Englis… Root origin matters for spelling because borrowed morphemes (Greek, Latin, Old French, Old English) carry their source-language orthographic conventions into modern English, which is why historical etymology is often the cleanest predictor of whether a cluster like "-ough", "-eau", or "-tion" will appear. For readers arriving here from a spelling check, the authoritative guidance is: the correct English form is addition, spelled A-D-D-I-T-I-O-N, and any other sequence of those letters, regardless of how natural it feels, is a misspelling in standard orthography.

Definition

  1. 1
    The act of adding anything.
  2. 2
    Anything that is added.
  3. 3
    The arithmetic operation of adding.
  4. 4
    A dot at the right side of a note as an indication that its sound is to be lengthened one half.
  5. 5
    A title annexed to a person's name to identify him or her more precisely.
  6. 6
    Something added to a coat of arms, as a mark of honour.
  7. 7
    an organic reaction where two or more molecules combine to form a larger one (the adduct).

Etymology

Etymology tree Proto-Indo-European *h₂éd Proto-Italic *ad Proto-Italic *ad- Latin ad- Proto-Indo-European *dʰeh₁- Proto-Indo-European *dʰéh₁tder. Proto-Italic *-ðō Latin -dō Latin addō Latin additiōder. Old French aditionder. Middle English addicioun English addition Sense of “what is added” dates from 14th century, from Middle English addicioun, addition, from Old French adition, from Latin additiōnem, accusative singular of additiō, from addō (“add, put”).

Synonyms

Antonyms

This word in other languages

Common misspellings

Also misspelled as: addiiton,addision,additino,additionn,additoin,addittion,addtiion,adidtion,adition,dadition

Misspelling Pattern Breakdown

Relative frequency of common misspelling types for addition

Misspelling Variants of "addition"

addiiton8addision8additino8additionn9additoin8addittion9addtiion8adidtion8
Misspelling Variants of "addition"

Frequency rank: #1,037 in English

Frequently Asked Questions

How do you spell "addition"?
"addition" is spelled A-D-D-I-T-I-O-N. The IPA pronunciation is /əˈdɪʃ.ən/.
What does "addition" mean?
As a noun, "addition" means: The act of adding anything.
What words are commonly confused with "addition"?
"addition" is commonly confused with "adoption", "ambition", "audition". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "addition"?
The IPA (International Phonetic Alphabet) transcription for "addition" is /əˈdɪʃ.ən/. 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 "addition"?
Etymology tree Proto-Indo-European *h₂éd Proto-Italic *ad Proto-Italic *ad- Latin ad- Proto-Indo-European *dʰeh₁- Proto-Indo-European *dʰéh₁tder. Proto-Italic *-ðō Latin -dō Latin addō Latin additiōder. Old French aditionder. Middle English addici... See the full etymology section above for more details.
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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.

Nearby English words

Other entries that begin with the letter A in our English index:

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Data Source: Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Frequency data from Wordfreq. Misspellings derived from Hunspell dictionaries.