completion

/kəmˈpliːʃən/

//kəmˈpliːʃən// noun

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

"completion" is a 10-letter English headword indexed on PlainSpell.

The verdict

“completion” has 16 generated spelling variants in the English index at frequency #4,932. The variants make it a useful spelling check.

#4,932
frequency rank, English
5,599
“C” headwords
16
tracked misspellings
3
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The act or state of being or making something complete; conclusion, accomplishment.

Corpus desk

Index EN-completion · completion · English

completion · rank #4,932 · 16 variants · 3 confusables

  • FREQ-COMMON #4,932
  • LEN-MEGA 10 letters
  • VOW-4 4 vowels
  • CONFUS-LOW 3 pairs
  • VAR-HIGH 16 variants
  • BOOK-DENSE 5,599
  • PHOTO-FINISH competing

Nearest frequency peer: competing (-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 “completion”

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

corpus weight

What this shows “completion” 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

Visual similarity to commonly confused words

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

completion vs complexion
90% similar
completion vs completing
80% similar
completion vs compilation
82% similar

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

Key facts for completion
PropertyValue
Headwordcompletion
LanguageEnglish
Part of speechNoun
IPA/kəmˈpliːʃən/
Letters10
Frequency rank#4,932
Misspellings tracked16
Confusable pairs3
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “completion”

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right).completionlands 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 “competing” (#4,931), “cruise” (#4,933), “custody” (#4,934). Among 5,599 “C” headwords, “completion” is #4,932. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 16 spelling variants around completion (IPA /kəmˈpliːʃən/), anoun. Corpus frequency is #4,932 among 5,599 “C” headwords. Wiktionary lists 6 senses, so context still picks the gloss.

Our generated misspelling index lists 16 likely wrong-spelling variants for completion, with forms such as "ccompletion", "cmopletion", and "comlpetion". Each of these forms differs from the correct spelling by one small edit: a doubled letter, a dropped silent letter, or a substituted vowel. It also participates in 3 confusable-pair relationships, "complexion", "completing", "compilation", where similar look or sound leads writers to substitute one word for another in context.

Etymologically, the entry records: Borrowed from Latin completio, completionem, from complere (“to fill up, complete”); comparable to English complete + -ion. The correct English form is completion, spelled C-O-M-P-L-E-T-I-O-N.

Definition

  1. 1
    The act or state of being or making something complete; conclusion, accomplishment.
  2. 2
    The conclusion of an act of conveyancing concerning the sale of a property.
  3. 3
    A forward pass that is successfully caught by the intended receiver.
  4. 4
    The act of making a metric space complete by adding points.
  5. 5
    The space resulting from such an act.
  6. 6
    Synonym of autocomplete.

Recorded use

Wiktionary examples

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

  1. Mr. Cooke had had a sloop yacht built at Far Harbor, the completion of which had been delayed, and which was but just delivered. […] The Maria had a cabin, which was finished in hard wood and yellow plush, and accommodations for keeping things cold.
  2. tab completion

Etymology

Borrowed from Latin completio, completionem, from complere (“to fill up, complete”); comparable to English complete + -ion.

Synonyms

completenessdonenessaccomplishmentcompletementcompletionconclusionconsummationexecutionfinishednessfulfillmentfulfillnessrealization

Antonyms

incompletionunfinishednessincompletiontermination

This word in other languages

compleción(Español)achèvement(Français)Fertigstellung(Deutsch)conclusão(Português)

Common misspellings

Also misspelled as:

  • ccompletion
  • cmopletion
  • comlpetion
  • commpletion
  • compeltion
  • compleiton
  • complesion
  • completino
  • completionn
  • completoin
  • complettion
  • complletion
  • complteion
  • comppletion
  • copmletion
  • ocmpletion

Misspelling Pattern Breakdown

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

ccompletion1cmopletion2comlpetion2commpletion1compeltion2compleiton2complesion1completino2
Edit distance from "completion"

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 "completion"?
"completion" is spelled C-O-M-P-L-E-T-I-O-N. The IPA pronunciation is /kəmˈpliːʃən/.
What does "completion" mean?
As a noun, "completion" means: The act or state of being or making something complete; conclusion, accomplishment.
What words are commonly confused with "completion"?
"completion" is commonly confused with "complexion", "completing", "compilation". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "completion"?
The IPA (International Phonetic Alphabet) transcription for "completion" is /kəmˈpliːʃən/. 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 "completion"?
Borrowed from Latin completio, completionem, from complere (“to fill up, complete”); comparable to English complete + -ion. 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 "completion", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 10 letters (nearest by frequency rank).

developers#4,938affordable#4,912unexpected#4,907legitimate#4,959

Similar misspelling depth

Headwords with a similar count of attested misspellings (16 here; floor ≥5).

imagination16 variantsphotograph16 variantsdisgusting16 variantsdifferently16 variants

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

Source: FrequencyWords open word-frequency list