mystery

/ˈmɪs.t(ə.)ɹi/

//ˈmɪs.t(ə.)ɹi// noun

"mystery" is a 7-letter English headword indexed on PlainSpell.

The verdict

“mystery” is a regularly-used English word, ranked #3,317 in English word frequency and used as a noun.

#3,317
frequency rank, English
7
letters
12
tracked misspellings
6
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Something secret or unexplainable; an unknown.

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

mystery vs master
71% similar
mystery vs misery
71% similar
mystery vs mister
71% similar

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

Key facts for mystery
PropertyValue
Headwordmystery
LanguageEnglish
Part of speechNoun
IPA/ˈmɪs.t(ə.)ɹi/
Letters7
Frequency rank#3,317
Misspellings tracked12
Confusable pairs6
SourceWiktionary (kaikki.org)

Where “mystery” sits in English frequency

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

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

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Spelling & Dictionary Insight

The English entry for mystery is 7 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /ˈmɪs.t(ə.)ɹi/. Corpus data places it at rank #3,317 in overall English word frequency, indicating it appears regularly in written and spoken text. Wiktionary records 10 distinct senses for this headword, so context determines which meaning a reader should apply.

Our generated misspelling index lists 12 likely wrong-spelling variants for mystery, with forms such as "mmystery", "msytery", and "mysetry". 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 also participates in 6 confusable-pair relationships, "master", "misery", "mister", and more, where similar look or sound leads writers to substitute one word for another in context.

Etymologically, the entry records: From Middle English mysterie, from Anglo-Norman misterie (Old French mistere), from Latin mysterium, from Ancient Greek μυστήριον (mustḗrion, “a mystery, a secret, a secret rite”), from μύστης (mústēs, “initiated one”), from μυέω (muéō, “to initiate”), from… The correct English form is mystery, spelled M-Y-S-T-E-R-Y.

Definition

  1. 1
    Something secret or unexplainable; an unknown.
  2. 2
    Someone or something with an obscure or puzzling nature.
  3. 3
    An account, story, book, film, or play, often with the theme of crime or murder, with a surprise ending that explains all the strange events that have occurred.
  4. 4
    A mystery play.
  5. 5
    A secret or mystical meaning.
  6. 6
    A religious truth not understandable by the application of human reason alone (without divine aid).
  7. 7
    A sacrament.
  8. 8
    A secret religious celebration, admission to which was usually through initiation.
  9. 9
    A particular event or series of events in the life of Christ.
  10. 10
    A craft, art or trade; specifically a guild of craftsmen.

Etymology

From Middle English mysterie, from Anglo-Norman misterie (Old French mistere), from Latin mysterium, from Ancient Greek μυστήριον (mustḗrion, “a mystery, a secret, a secret rite”), from μύστης (mústēs, “initiated one”), from μυέω (muéō, “to initiate”), from μύω (múō, “to shut”). Displaced native Old English ġerȳne.

Synonyms

This word in other languages

Common misspellings

Also misspelled as: mmystery,msytery,mysetry,mysstery,mysterry,mysteryy,mysteyr,mystrey,mysttery,mytsery,myystery,ymstery

Misspelling Pattern Breakdown

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

mmystery1msytery2mysetry2mysstery1mysterry1mysteryy1mysteyr2mystrey2
Edit distance from "mystery"

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 "mystery"?
"mystery" is spelled M-Y-S-T-E-R-Y. The IPA pronunciation is /ˈmɪs.t(ə.)ɹi/.
What does "mystery" mean?
As a noun, "mystery" means: Something secret or unexplainable; an unknown.
What words are commonly confused with "mystery"?
"mystery" is commonly confused with "master", "misery", "mister". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "mystery"?
The IPA (International Phonetic Alphabet) transcription for "mystery" is /ˈmɪs.t(ə.)ɹi/. 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 "mystery"?
From Middle English mysterie, from Anglo-Norman misterie (Old French mistere), from Latin mysterium, from Ancient Greek μυστήριον (mustḗrion, “a mystery, a secret, a secret rite”), from μύστης (mústēs, “initiated one”), from μυέω (muéō, “to initia... 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.

Using “mystery”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct English spelling is M-Y-S-T-E-R-Y - every other letter order is a misspelling in standard orthography.
  • Say it as /ˈmɪs.t(ə.)ɹi/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Don't mix it up with “master” - see the side-by-side comparison. mystery vs master
  • Browse more English words and confusable pairs in the same reference. English words
Data Source

Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.

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

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list