conclusion

/kənˈkluːʒən/

//kənˈkluːʒən// noun

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

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

The verdict

“conclusion” has 16 generated spelling variants in the English index at frequency #3,608. The variants make it a useful spelling check.

#3,608
frequency rank, English
5,599
“C” headwords
16
tracked misspellings
5
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The end, finish, close or last part of something.

Corpus desk

Index EN-conclusion · conclusion · English

conclusion · rank #3,608 · 16 variants · 5 confusables

  • FREQ-COMMON #3,608
  • LEN-MEGA 10 letters
  • VOW-4 4 vowels
  • CONFUS-MID 5 pairs
  • VAR-HIGH 16 variants
  • BOOK-DENSE 5,599
  • PHOTO-FINISH Columbia

Nearest frequency peer: Columbia (-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 “conclusion”

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

corpus weight

What this shows “conclusion” 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).

conclusion vs confusion
80% similar
conclusion vs concussion
80% similar
conclusion vs conclusive
80% similar

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

Key facts for conclusion
PropertyValue
Headwordconclusion
LanguageEnglish
Part of speechNoun
IPA/kənˈkluːʒən/
Letters10
Frequency rank#3,608
Misspellings tracked16
Confusable pairs5
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “conclusion”

This scale runs from the tiny cluster of words that carry ordinary speech (left) to the long tail of words almost nobody reaches for (right).conclusionlands 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 “Columbia” (#3,607), “confirm” (#3,609), “cares” (#3,606). Among 5,599 “C” headwords, “conclusion” is #3,608. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 16 spelling variants around conclusion (IPA /kənˈkluːʒən/), anoun. Corpus frequency is #3,608 among 5,599 “C” headwords. Wiktionary lists 8 senses, so context still picks the gloss.

Our generated misspelling index lists 16 likely wrong-spelling variants for conclusion, with forms such as "cconclusion", "cnoclusion", and "cocnlusion". 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 5 confusable-pair relationships, "confusion", "concussion", "conclusive", 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, borrowed from Old French conclusion, from Latin conclūsiō, from the past participle stem of conclūdere (“to conclude”), from con- + claudō, ultimately from Proto-Indo-European *kleh₂u- (“key, hook, nail”). By surface analysis, conclude … The correct English form is conclusion, spelled C-O-N-C-L-U-S-I-O-N.

Definition

  1. 1
    The end, finish, close or last part of something.
  2. 2
    The outcome or result of a process or act.
  3. 3
    A decision reached after careful thought.
  4. 4
    In an argument or syllogism, the proposition that follows as a necessary consequence of the premises.
  5. 5
    An experiment, or something from which a conclusion may be drawn.
  6. 6
    The end or close of a pleading, for example, the formal ending of an indictment, "against the peace", etc.
  7. 7
    An estoppel or bar by which a person is held to a particular position.
  8. 8
    arrangement; settlement.

Recorded use

Wiktionary examples

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

  1. At the end of the seventh hour, a flourish of trumpets announced the conclusion of the contest; […]
  2. Some have recently questioned whether conclusion of a START treaty is a lower priority for the Bush Administration than conclusion of a conventional force in Europe (CFE) treaty or whether we want to delay START pending progress in CFE.

Etymology

From Middle English, borrowed from Old French conclusion, from Latin conclūsiō, from the past participle stem of conclūdere (“to conclude”), from con- + claudō, ultimately from Proto-Indo-European *kleh₂u- (“key, hook, nail”). By surface analysis, conclude + -sion.

This word in other languages

conclusión(Español)conclusion(Français)Schluss(Deutsch)conclusão(Português)

Common misspellings

Also misspelled as:

  • cconclusion
  • cnoclusion
  • cocnlusion
  • concclusion
  • concllusion
  • conclsuion
  • concluison
  • conclusino
  • conclusionn
  • conclusoin
  • conclussion
  • conclution
  • conculsion
  • conlcusion
  • connclusion
  • ocnclusion

Misspelling Pattern Breakdown

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

cconclusion1cnoclusion2cocnlusion2concclusion1concllusion1conclsuion2concluison2conclusino2
Edit distance from "conclusion"

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 "conclusion"?
"conclusion" is spelled C-O-N-C-L-U-S-I-O-N. The IPA pronunciation is /kənˈkluːʒən/.
What does "conclusion" mean?
As a noun, "conclusion" means: The end, finish, close or last part of something.
What words are commonly confused with "conclusion"?
"conclusion" is commonly confused with "confusion", "concussion", "conclusive". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "conclusion"?
The IPA (International Phonetic Alphabet) transcription for "conclusion" is /kənˈkluːʒən/. 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 "conclusion"?
From Middle English, borrowed from Old French conclusion, from Latin conclūsiō, from the past participle stem of conclūdere (“to conclude”), from con- + claudō, ultimately from Proto-Indo-European *kleh₂u- (“key, hook, nail”). By surface analysis,... 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 "conclusion", not the corpus desk frequency band.

Same letter count

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

references#3,524friendship#3,694principles#3,521industries#3,501

Similar misspelling depth

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

participate16 variantsdisappointed16 variantsafterwards16 variantsincredibly16 variants

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

Source: FrequencyWords open word-frequency list