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complement

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

Letters

10 characters

Language

English

word origin

Source

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Detailed reference entry for the English word "complement", 10-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 "complement" 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 "complement" for academic writing, checking homophone confusion, or exploring etymological origins, this page provides a citation-backed, free reference that requires no sign-up.

complement is aEnglishnoun. It means: The totality, the full amount or number which completes something. Pronounced /ˈkɒmpləmənt/. Often confused with compliment and compliments.

Key facts for complement
PropertyValue
Headwordcomplement
LanguageEnglish
Part of speechNoun
IPA/ˈkɒmpləmənt/
Letters10
Frequency rank#10,019
Misspellings tracked16
Confusable pairs5
SourceWiktionary (kaikki.org)

Frequency rank visualization

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

Source: Wordfreq corpus

Spelling & Dictionary Insight

The English entry for complement is 10 letters long, classified as anoun, and transcribed in the International Phonetic Alphabet as /ˈkɒmpləmənt/. Corpus data places it at rank #10,019 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it.Wiktionary records 22 distinct senses for this headword, so context determines which meaning a reader should apply.

Our Hunspell-derived misspelling index lists 16 documented wrong-spelling variants for complement, with forms such as "ccomplement", "cmoplement", and "comlpement". 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 5 confusable-pair relationships, "compliment", "compliments", "complemented", and more, where similar look or sound leads writers to substitute one word for another in context.

Etymologically, the entry records: From Middle English complement, from Latin complēmentum (“that which fills up or completes”), from compleō (“to fill up; to complete”) (English complete). Doublet of compliment. The verb is from the noun. 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 complement, spelled C-O-M-P-L-E-M-E-N-T, and any other sequence of those letters, regardless of how natural it feels, is a misspelling in standard orthography.

Definition

  1. 1
    The totality, the full amount or number which completes something.
  2. 2
    The whole working force of a vessel.
  3. 3
    An angle which, together with a given angle, makes a right angle.
  4. 4
    Something which completes, something which combines with something else to make up a complete whole; loosely, something perceived to be a harmonious or desirable partner or addition.
  5. 5
    A word or group of words that completes a grammatical construction in the predicate and that describes or is identified with the subject or object.
  6. 6
    A phonetic complement is a graphic element that modifies another, such as (in Linear B script) a small syllabogram that is attached to a logogram as an abbreviation of its reading (as opposed to an adjunct that abbreviates an adjective that modifies that logogram).
  7. 7
    An interval which, together with the given interval, makes an octave.
  8. 8
    The color which, when mixed with the given color, gives black (for mixing pigments) or white (for mixing light).
  9. 9
    Given two sets, the set containing one set's elements that are not members of the other set (whether a relative complement or an absolute complement).
  10. 10
    One of several blood proteins that work with antibodies during an immune response.
  11. 11
    An expression related to some other expression such that it is true under the same conditions that make other false, and vice versa.
  12. 12
    A voltage level with the opposite logical sense to the given one.
  13. 13
    A bit with the opposite value to the given one; the logical complement of a number.
  14. 14
    The diminished radix complement of a number; the nines' complement of a decimal number; the ones' complement of a binary number.
  15. 15
    The radix complement of a number; the two's complement of a binary number.
  16. 16
    The numeric complement of a number.
  17. 17
    A nucleotide sequence in which each base is replaced by the complementary base of the given sequence: adenine (A) by thymine (T) or uracil (U), cytosine (C) by guanine (G), and vice versa.
  18. 18
    Synonym of alexin.
  19. 19
    Abbreviation of complementary good.
  20. 20
    Something (or someone) that completes; the consummation.
  21. 21
    The act of completing something, or the fact of being complete; completion, completeness, fulfilment.
  22. 22
    Something which completes one's equipment, dress etc.; an accessory.

Etymology

From Middle English complement, from Latin complēmentum (“that which fills up or completes”), from compleō (“to fill up; to complete”) (English complete). Doublet of compliment. The verb is from the noun.

This word in other languages

Common misspellings

Also misspelled as: ccomplement,cmoplement,comlpement,commplement,compelment,compleemnt,complemennt,complementt,complemetn,complemment,complemnet,compllement,complmeent,compplement,copmlement,ocmplement

Misspelling Pattern Breakdown

Relative frequency of common misspelling types for complement

Misspelling Variants of "complement"

ccomplement11cmoplement10comlpement10commplement11compelment10compleemnt10complemennt11complementt11
Misspelling Variants of "complement"

Frequency rank: #10,019 in English

Frequently Asked Questions

How do you spell "complement"?
"complement" is spelled C-O-M-P-L-E-M-E-N-T. The IPA pronunciation is /ˈkɒmpləmənt/.
What does "complement" mean?
As a noun, "complement" means: The totality, the full amount or number which completes something.
What words are commonly confused with "complement"?
"complement" is commonly confused with "compliment", "compliments", "complemented". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "complement"?
The IPA (International Phonetic Alphabet) transcription for "complement" is /ˈkɒmpləmənt/. 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 "complement"?
From Middle English complement, from Latin complēmentum (“that which fills up or completes”), from compleō (“to fill up; to complete”) (English complete). Doublet of compliment. The verb is from the noun. 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.

Nearby English words

Other entries that begin with the letter C 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.