treachery

/ˈtɹɛt͡ʃəɹi/

//ˈtɹɛt͡ʃəɹi// noun

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

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

The verdict

“treachery” has 14 generated spelling variants in the English index at frequency #24,618. The variants make it a useful spelling check.

#24,618
frequency rank, English
3,151
“T” headwords
14
tracked misspellings
2
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Deliberate, often calculated, disregard for trust or faith.

Corpus desk

Index EN-treachery · treachery · English

treachery · rank #24,618 · 14 variants · 2 confusables

  • FREQ-MID #24,618
  • LEN-LONG 9 letters
  • VOW-4 4 vowels
  • CONFUS-LOW 2 pairs
  • VAR-HIGH 14 variants
  • BOOK-MID 3,151
  • PHOTO-FINISH transfusion

Nearest frequency peer: transfusion (-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 “treachery”

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

corpus weight

What this shows “treachery” 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).

treachery vs teacher
78% similar
treachery vs teachers
78% similar

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

Key facts for treachery
PropertyValue
Headwordtreachery
LanguageEnglish
Part of speechNoun
IPA/ˈtɹɛt͡ʃəɹi/
Letters9
Frequency rank#24,618
Misspellings tracked14
Confusable pairs2
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “treachery”

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).treacherylands 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 “transfusion” (#24,617), “tung” (#24,619), “toxicology” (#24,616). Among 3,151 “T” headwords, “treachery” is #24,618. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 14 spelling variants around treachery (IPA /ˈtɹɛt͡ʃəɹi/), anoun. Corpus frequency is #24,618 among 3,151 “T” headwords. Wiktionary lists 4 senses, so context still picks the gloss.

Our generated misspelling index lists 14 likely wrong-spelling variants for treachery, with forms such as "rteachery", "terachery", and "traechery". 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 2 confusable-pair relationships, "teacher", "teachers", where similar look or sound leads writers to substitute one word for another in context.

Etymologically, the entry records: From Middle English trecherie, from Old French tricherie, trecherie, from tricher, trichier (“to cheat”). The correct English form is treachery, spelled T-R-E-A-C-H-E-R-Y.

Definition

  1. 1
    Deliberate, often calculated, disregard for trust or faith.
  2. 2
    The act of violating the confidence of another, usually for personal gain.
  3. 3
    Treason.
  4. 4
    An act or instance of treachery.

Recorded use

Wiktionary examples

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

  1. Suddenly, in the midst of high-camp treachery and sleuthery, each character does a star turn, breaking out in song.
  2. These submerged treacheries left an atmosphere. Even two such practised obliterators of their species as Bradly and Podson could not fail to note that each was secreting a certain reservation of opinion on the other.

Etymology

From Middle English trecherie, from Old French tricherie, trecherie, from tricher, trichier (“to cheat”).

This word in other languages

alevosía(Español)traîtrise(Français)Verrat(Deutsch)

Common misspellings

Also misspelled as:

  • rteachery
  • terachery
  • traechery
  • treacchery
  • treacehry
  • treacherry
  • treacheryy
  • treacheyr
  • treachhery
  • treachrey
  • treahcery
  • trecahery
  • trreachery
  • ttreachery

Misspelling Pattern Breakdown

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

rteachery2terachery2traechery2treacchery1treacehry2treacherry1treacheryy1treacheyr2
Edit distance from "treachery"

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 "treachery"?
"treachery" is spelled T-R-E-A-C-H-E-R-Y. The IPA pronunciation is /ˈtɹɛt͡ʃəɹi/.
What does "treachery" mean?
As a noun, "treachery" means: Deliberate, often calculated, disregard for trust or faith.
What words are commonly confused with "treachery"?
"treachery" is commonly confused with "teacher", "teachers". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "treachery"?
The IPA (International Phonetic Alphabet) transcription for "treachery" is /ˈtɹɛt͡ʃəɹi/. 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 "treachery"?
From Middle English trecherie, from Old French tricherie, trecherie, from tricher, trichier (“to cheat”). 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 "treachery", not the corpus desk frequency band.

Same letter count

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

unmatched#24,623Valentino#24,628supernova#24,605viscosity#24,633

Similar misspelling depth

Headwords with a similar count of attested misspellings (14 here; floor ≥5).

adaptable14 variantsresultant14 variantspressuring14 variantsoverloaded14 variants

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

Source: FrequencyWords open word-frequency list