concentration

/ˌkɒn.sənˈtɹeɪ.ʃən/

//ˌkɒn.sənˈtɹeɪ.ʃən// noun

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

"concentration" is a 13-letter English headword indexed on PlainSpell.

The verdict

“concentration” has 21 generated spelling variants in the English index at frequency #4,514. The variants make it a useful spelling check.

#4,514
frequency rank, English
5,599
“C” headwords
21
tracked misspellings

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The act, process or ability of concentrating; the process of becoming concentrated, or the state of being concentrated.

Corpus desk

Index EN-concentration · concentration · English

concentration · rank #4,514 · 21 variants · 0 confusables

  • FREQ-COMMON #4,514
  • LEN-MEGA 13 letters
  • VOW-5 5 vowels
  • CONFUS-0 No pairs
  • VAR-HIGH 21 variants
  • BOOK-DENSE 5,599
  • PHOTO-FINISH composed

Nearest frequency peer: composed (-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 “concentration”

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

corpus weight

What this shows “concentration” 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
Key facts for concentration
PropertyValue
Headwordconcentration
LanguageEnglish
Part of speechNoun
IPA/ˌkɒn.sənˈtɹeɪ.ʃən/
Letters13
Frequency rank#4,514
Misspellings tracked21
Confusable pairs0
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “concentration”

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).concentrationlands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Same rarity band neighbours include “composed” (#4,513), “copper” (#4,515), “CM” (#4,512). Among 5,599 “C” headwords, “concentration” is #4,514. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 21 spelling variants around concentration (IPA /ˌkɒn.sənˈtɹeɪ.ʃən/), anoun. Corpus frequency is #4,514 among 5,599 “C” headwords. Wiktionary lists 8 senses, so context still picks the gloss.

Our generated misspelling index lists 21 likely wrong-spelling variants for concentration, with forms such as "cconcentration", "cnocentration", and "cocnentration". Every one of these variants traces to a single-character edit -- an added or dropped letter, a swapped consonant, or a vowel swap -- the kind of slip a spell-checker is built to catch. It is not paired with a close-neighbour confusable in our dataset, which tends to mean the word is visually distinctive enough to stand on its own.

Etymologically, the entry records: From New Latin concentrātiō (“(1550) action or an act of coming together at a single place; (1659) extraction or separation of one or more of the metals present in an alloy”). Compare French concentration, Spanish concentración, Italian concentrazione (last… The correct English form is concentration, spelled C-O-N-C-E-N-T-R-A-T-I-O-N.

Definition

  1. 1
    The act, process or ability of concentrating; the process of becoming concentrated, or the state of being concentrated.
  2. 2
    The act, process or ability of concentrating; the process of becoming concentrated, or the state of being concentrated.
  3. 3
    The act, process or ability of concentrating; the process of becoming concentrated, or the state of being concentrated.
  4. 4
    The act, process or ability of concentrating; the process of becoming concentrated, or the state of being concentrated.
  5. 5
    A field or course of study on which one focuses, especially as a student in a college or university.
  6. 6
    The proportion of a substance in a whole.
  7. 7
    The proportion of a substance in a whole.
  8. 8
    The matching game pelmanism.

Recorded use

Wiktionary examples

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

  1. The Koreans Almost all the Koreans in China live in the north-eastern provinces. The greatest concentration is found in an area of approximately 1,200 square miles in Kirin Province, an area which is part of the Yen-pien Korean Autonomous Chou.
  2. Surprisingly, this analysis revealed that acute exposure to solvent vapors at concentrations below those associated with long-term effects appears to increase the risk of a fatal automobile accident. Furthermore, this increase in risk is comparable to the risk of death from leukemia after long-term exposure to benzene, another solvent, which has the well-…

Etymology

From New Latin concentrātiō (“(1550) action or an act of coming together at a single place; (1659) extraction or separation of one or more of the metals present in an alloy”). Compare French concentration, Spanish concentración, Italian concentrazione (last quarter of 16th century). Equivalent to concentrate + -ion. By surface analysis, con- + centre + -ate + -ion.

This word in other languages

concentración(Español)concentration(Français)Konzentration(Deutsch)concentração(Português)

Common misspellings

Also misspelled as:

  • cconcentration
  • cnocentration
  • cocnentration
  • conccentration
  • concenntration
  • concenrtation
  • concentartion
  • concentraiton
  • concentrasion
  • concentratino
  • concentrationn
  • concentratoin
  • concentrattion
  • concentrration
  • concentrtaion
  • concenttration
  • concetnration
  • concnetration
  • conecntration
  • conncentration
  • ocncentration

Misspelling Pattern Breakdown

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

cconcentration1cnocentration2cocnentration2conccentration1concenntration1concenrtation2concentartion2concentraiton2
Edit distance from "concentration"

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 "concentration"?
"concentration" is spelled C-O-N-C-E-N-T-R-A-T-I-O-N. The IPA pronunciation is /ˌkɒn.sənˈtɹeɪ.ʃən/.
What does "concentration" mean?
As a noun, "concentration" means: The act, process or ability of concentrating; the process of becoming concentrated, or the state of being concentrated.
What are common misspellings of "concentration"?
Common misspellings include "cconcentration", "cnocentration", "cocnentration", "conccentration", "concenntration". The correct spelling is "concentration".
How do you pronounce "concentration"?
The IPA (International Phonetic Alphabet) transcription for "concentration" is /ˌkɒn.sənˈtɹeɪ.ʃən/. 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 "concentration"?
From New Latin concentrātiō (“(1550) action or an act of coming together at a single place; (1659) extraction or separation of one or more of the metals present in an alloy”). Compare French concentration, Spanish concentración, Italian concentraz... 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 "concentration", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 13 letters (nearest by frequency rank).

psychological#4,549consideration#4,435collaboration#4,433Massachusetts#4,252

Similar misspelling depth

Headwords with a similar count of attested misspellings (21 here; floor ≥5).

recommendations21 variantsconstitutional21 variantsuncomfortable21 variantsidentification21 variants

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

Source: FrequencyWords open word-frequency list