supplementation

noun

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

"supplementation" is a 15-letter English headword indexed on PlainSpell.

The verdict

“supplementation” has 22 generated spelling variants in the English index at frequency #30,996. The variants make it a useful spelling check.

#30,996
frequency rank, English
6,566
“S” headwords
22
tracked misspellings

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The act of supplementing

Corpus desk

Index EN-supplementation · supplementation · English

supplementation · rank #30,996 · 22 variants · 0 confusables

  • FREQ-MID #30,996
  • LEN-MEGA 15 letters
  • VOW-6 6 vowels
  • CONFUS-0 No pairs
  • VAR-HIGH 22 variants
  • BOOK-DENSE 6,566
  • PHOTO-FINISH SUNY

Nearest frequency peer: SUNY (-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 “supplementation”

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

corpus weight

What this shows “supplementation” 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 supplementation
PropertyValue
Headwordsupplementation
LanguageEnglish
Part of speechNoun
Letters15
Frequency rank#30,996
Misspellings tracked22
Confusable pairs0
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “supplementation”

Word frequency stretches from the small set of words we reach for constantly (left) out to the long tail barely used once in a while (right).supplementationlands 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 “SUNY” (#30,995), “swerve” (#30,997), “sunburn” (#30,994). Among 6,566 “S” headwords, “supplementation” is #30,996. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 22 spelling variants around supplementation, anoun. Corpus frequency is #30,996 among 6,566 “S” headwords. Wiktionary lists 2 senses, so context still picks the gloss.

Our generated misspelling index lists 22 likely wrong-spelling variants for supplementation, with forms such as "spuplementation", "ssupplementation", and "suplementation". Each variant is a distinct typo pattern an edit-distance generator flags, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution. No close-neighbour confusable shows up for this headword in our dataset, a sign it's visually distinctive enough not to be mixed up with another word.

Etymologically, the entry records: From supplement + -ation. The correct English form is supplementation, spelled S-U-P-P-L-E-M-E-N-T-A-T-I-O-N.

Definition

  1. 1
    The act of supplementing
  2. 2
    Something added as a supplement

Etymology

From supplement + -ation.

Common misspellings

Also misspelled as:

  • spuplementation
  • ssupplementation
  • suplementation
  • suplpementation
  • suppelmentation
  • suppleemntation
  • supplemenattion
  • supplemenntation
  • supplementaiton
  • supplementasion
  • supplementatino
  • supplementationn
  • supplementatoin
  • supplementattion
  • supplementtaion
  • supplementtation
  • supplemetnation
  • supplemmentation
  • supplemnetation
  • suppllementation
  • supplmeentation
  • uspplementation

Misspelling Pattern Breakdown

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

spuplementation2ssupplementation1suplementation1suplpementation2suppelmentation2suppleemntation2supplemenattion2supplemenntation1
Edit distance from "supplementation"

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 "supplementation"?
"supplementation" is spelled S-U-P-P-L-E-M-E-N-T-A-T-I-O-N.
What does "supplementation" mean?
As a noun, "supplementation" means: The act of supplementing
What are common misspellings of "supplementation"?
Common misspellings include "spuplementation", "ssupplementation", "suplementation", "suplpementation", "suppelmentation". The correct spelling is "supplementation".
What is the origin of the word "supplementation"?
From supplement + -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 "supplementation", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 15 letters (nearest by frequency rank).

troubleshooting#30,627procrastination#30,547comprehensively#30,374methamphetamine#30,133

Similar misspelling depth

Headwords with a similar count of attested misspellings (22 here; floor ≥5).

malfunctioning22 variantssubconsciously22 variantsdisinformation22 variantsfundamentalism22 variants

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

Source: FrequencyWords open word-frequency list