summation

/sʌˈmeɪʃən/

//sʌˈmeɪʃən// noun

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

"summation" is a 9-letter English headword indexed on PlainSpell.

The verdict

“summation” has 12 generated spelling variants in the English index at frequency #32,201. The variants make it a useful spelling check.

#32,201
frequency rank, English
6,566
“S” headwords
12
tracked misspellings

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Summarization; summary; summing up.

Corpus desk

Index EN-summation · summation · English

summation · rank #32,201 · 12 variants · 0 confusables

  • FREQ-MID #32,201
  • LEN-LONG 9 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-MID 12 variants
  • BOOK-DENSE 6,566
  • PHOTO-FINISH sulfide

Nearest frequency peer: sulfide (-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 “summation”

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

corpus weight

What this shows “summation” 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 summation
PropertyValue
Headwordsummation
LanguageEnglish
Part of speechNoun
IPA/sʌˈmeɪʃən/
Letters9
Frequency rank#32,201
Misspellings tracked12
Confusable pairs0
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “summation”

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right).summationlands here:

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

The axis is logarithmic, with each marked tick roughly ten times rarer than the last. Same rarity band neighbours include “sulfide” (#32,200), “superimposed” (#32,202), “subtropical” (#32,199). Among 6,566 “S” headwords, “summation” is #32,201. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 12 spelling variants around summation (IPA /sʌˈmeɪʃən/), anoun. Corpus frequency is #32,201 among 6,566 “S” headwords. Wiktionary lists 2 senses, so context still picks the gloss.

Our generated misspelling index lists 12 likely wrong-spelling variants for summation, with forms such as "smumation", "ssummation", and "sumamtion". Each of these forms differs from the correct spelling by one small edit: a doubled letter, a dropped silent letter, or a substituted vowel. No confusable counterpart is on file for this word, since nothing in our dataset looks or sounds close enough to cause mix-ups.

Etymologically, the entry records: From sum + -ation. The correct English form is summation, spelled S-U-M-M-A-T-I-O-N.

Definition

  1. 1
    Summarization; summary; summing up.
  2. 2
    Summing; summing up; adding (adding up) of a series of items.

Recorded use

Wiktionary example

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

  1. In a summation of changed times, we have a lost station site in Bournemouth (now occupied by a coach park) as well as its former hotel (still clinging on as apartments).

Etymology

From sum + -ation.

This word in other languages

sumatoria(Español)

Common misspellings

Also misspelled as:

  • smumation
  • ssummation
  • sumamtion
  • sumation
  • summaiton
  • summasion
  • summatino
  • summationn
  • summatoin
  • summattion
  • summtaion
  • usmmation

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of summation - measured in single-character edits (insert, delete, or substitute a letter). Larger bars are easier to catch; one-edit slips are the sneakiest.

smumation2ssummation1sumamtion2sumation1summaiton2summasion1summatino2summationn1
Edit distance from "summation"

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 "summation"?
"summation" is spelled S-U-M-M-A-T-I-O-N. The IPA pronunciation is /sʌˈmeɪʃən/.
What does "summation" mean?
As a noun, "summation" means: Summarization; summary; summing up.
What are common misspellings of "summation"?
Common misspellings include "smumation", "ssummation", "sumamtion", "sumation", "summaiton". The correct spelling is "summation".
How do you pronounce "summation"?
The IPA (International Phonetic Alphabet) transcription for "summation" is /sʌˈmeɪʃən/. 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 "summation"?
From sum + -ation. 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 "summation", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 9 letters (nearest by frequency rank).

surfacing#32,203tiredness#32,211Slovenian#32,186signatory#32,179

Similar misspelling depth

Headwords with a similar count of attested misspellings (12 here; floor ≥5).

spiteful12 variantsSandoval12 variantsRohingya12 variantsweirdness12 variants

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

Source: FrequencyWords open word-frequency list