sickness

/ˈsɪknɪs/

//ˈsɪknɪs// noun

"sickness" is a 8-letter English headword indexed on PlainSpell.

The verdict

“sickness” has 11 generated spelling variants in the English index at frequency #9,249. The variants make it a useful spelling check.

#9,249
frequency rank, English
6,566
“S” headwords
11
tracked misspellings

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The quality or state of being sick or diseased; illness.

Corpus desk

Index EN-sickness · sickness · English

sickness · rank #9,249 · 11 variants · 0 confusables

  • FREQ-COMMON #9,249
  • LEN-LONG 8 letters
  • VOW-2 2 vowels
  • CONFUS-0 No pairs
  • VAR-MID 11 variants
  • BOOK-DENSE 6,566
  • PHOTO-FINISH shave

Nearest frequency peer: shave (-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 “sickness”

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

corpus weight

What this shows “sickness” 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 sickness
PropertyValue
Headwordsickness
LanguageEnglish
Part of speechNoun
IPA/ˈsɪknɪs/
Letters8
Frequency rank#9,249
Misspellings tracked11
Confusable pairs0
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “sickness”

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right).sicknesslands 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 “shave” (#9,248), “simpler” (#9,250), “sage” (#9,247). Among 6,566 “S” headwords, “sickness” is #9,249. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 11 spelling variants around sickness (IPA /ˈsɪknɪs/), anoun. Corpus frequency is #9,249 among 6,566 “S” headwords. Wiktionary lists 3 senses, so context still picks the gloss.

Our generated misspelling index lists 11 likely wrong-spelling variants for sickness, with forms such as "isckness", "scikness", and "sicckness". Each of these forms differs from the correct spelling by one small edit: a doubled letter, a dropped silent letter, or a substituted vowel. This headword has no recorded confusable partner, suggesting its spelling stands apart enough that readers rarely confuse it with something else.

Etymologically, the entry records: From Middle English sikness, from Old English sēocnes. By surface analysis, sick + -ness. The correct English form is sickness, spelled S-I-C-K-N-E-S-S.

Definition

  1. 1
    The quality or state of being sick or diseased; illness.
  2. 2
    Nausea; qualmishness; as, sickness of stomach.
  3. 3
    The analogical misuse of a rarer or marked grammatical case in the place of a more common or unmarked case.

Recorded use

Wiktionary examples

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

  1. I do lament the sickness of the king.
  2. 18th century, Alexander Pope, Epistle to Miss Blount Trust not too much your now resistless charms; Those, age or sickness soon or late disarms.

Etymology

From Middle English sikness, from Old English sēocnes. By surface analysis, sick + -ness.

Synonyms

This word in other languages

Common misspellings

Also misspelled as:

  • isckness
  • scikness
  • sicckness
  • sickenss
  • sickkness
  • sicknes
  • sicknness
  • sicknses
  • sicnkess
  • sikcness
  • ssickness

Misspelling Pattern Breakdown

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

isckness2scikness2sicckness1sickenss2sickkness1sicknes1sicknness1sicknses2
Edit distance from "sickness"

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 "sickness"?
"sickness" is spelled S-I-C-K-N-E-S-S. The IPA pronunciation is /ˈsɪknɪs/.
What does "sickness" mean?
As a noun, "sickness" means: The quality or state of being sick or diseased; illness.
What are common misspellings of "sickness"?
Common misspellings include "isckness", "scikness", "sicckness", "sickenss", "sickkness". The correct spelling is "sickness".
How do you pronounce "sickness"?
The IPA (International Phonetic Alphabet) transcription for "sickness" is /ˈsɪknɪs/. 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 "sickness"?
From Middle English sikness, from Old English sēocnes. By surface analysis, sick + -ness. 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 "sickness", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 8 letters (nearest by frequency rank).

Similar misspelling depth

Headwords with a similar count of attested misspellings (11 here; floor ≥5).

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

Source: FrequencyWords open word-frequency list