diseases

/dɪˈziː.zɪz/

//dɪˈziː.zɪz// noun

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

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

The verdict

“diseases” has 10 generated spelling variants in the English index at frequency #3,873. The variants make it a useful spelling check.

#3,873
frequency rank, English
3,470
“D” headwords
10
tracked misspellings
2
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - plural of disease

Corpus desk

Index EN-diseases · diseases · English

diseases · rank #3,873 · 10 variants · 2 confusables

  • FREQ-COMMON #3,873
  • LEN-LONG 8 letters
  • VOW-4 4 vowels
  • CONFUS-LOW 2 pairs
  • VAR-MID 10 variants
  • BOOK-MID 3,470
  • PHOTO-FINISH Diego

Nearest frequency peer: Diego (-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 “diseases”

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

corpus weight

What this shows “diseases” 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).

diseases vs disease
88% similar
diseases vs diseased
88% similar

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

Key facts for diseases
PropertyValue
Headworddiseases
LanguageEnglish
Part of speechNoun
IPA/dɪˈziː.zɪz/
Letters8
Frequency rank#3,873
Misspellings tracked10
Confusable pairs2
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “diseases”

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

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

Scale is logarithmic (each tick is 10× rarer). Same rarity band neighbours include “Diego” (#3,872), “divorce” (#3,874), “destruction” (#3,871). Among 3,470 “D” headwords, “diseases” is #3,873. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 10 spelling variants around diseases (IPA /dɪˈziː.zɪz/), anoun. Corpus frequency is #3,873 among 3,470 “D” headwords. Dominant gloss: "plural of disease".

Our generated misspelling index lists 10 likely wrong-spelling variants for diseases, with forms such as "ddiseases", "diesases", and "disaeses". 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 2 confusable-pair relationships, "disease", "diseased", a pairing that trips writers up because the two words share enough sound or shape to blur together.

No documented word history exists for this headword, leaving phoneme-to-grapheme mapping as the best guide to its spelling rather than a borrowing history. The correct English form is diseases, spelled D-I-S-E-A-S-E-S.

Definition

  1. 1
    plural of disease

Common misspellings

Also misspelled as:

  • ddiseases
  • diesases
  • disaeses
  • diseaess
  • diseasess
  • diseasses
  • disesaes
  • disseases
  • dsieases
  • idseases

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of diseases - counted as single-character edits (an insertion, a deletion, or a substituted letter). The larger the bar, the easier the typo is to spot; one-edit slips are the ones that sneak past readers.

ddiseases1diesases2disaeses2diseaess2diseasess1diseasses1disesaes2disseases1
Edit distance from "diseases"

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 "diseases"?
"diseases" is spelled D-I-S-E-A-S-E-S. The IPA pronunciation is /dɪˈziː.zɪz/.
What does "diseases" mean?
As a noun, "diseases" means: plural of disease
What words are commonly confused with "diseases"?
"diseases" is commonly confused with "disease", "diseased". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "diseases"?
The IPA (International Phonetic Alphabet) transcription for "diseases" is /dɪˈziː.zɪz/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "diseases" come from?
"diseases" is a English word. PlainSpell's reference spans five languages -- English, Spanish, Portuguese, French, and German -- with definitions, pronunciations, and spelling data for each.
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 "diseases", not the corpus desk frequency band.

Same letter count

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

heritage#3,886Anderson#3,858survival#3,851reducing#3,901

Similar misspelling depth

Headwords with a similar count of attested misspellings (10 here; floor ≥5).

divorce10 variantsreverse10 variantsscript10 variantsmonitor10 variants

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

Source: FrequencyWords open word-frequency list