treasonous

adj

"treasonous" is a 10-letter English headword indexed on PlainSpell.

The verdict

“treasonous” has 14 generated spelling variants in the English index at frequency #42,961. The variants make it a useful spelling check.

#42,961
frequency rank, English
3,151
“T” headwords
14
tracked misspellings

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Like or in the way of treason.

Corpus desk

Index EN-treasonous · treasonous · English

treasonous · rank #42,961 · 14 variants · 0 confusables

  • FREQ-MID #42,961
  • LEN-MEGA 10 letters
  • VOW-5 5 vowels
  • CONFUS-0 No pairs
  • VAR-HIGH 14 variants
  • BOOK-MID 3,151
  • PHOTO-FINISH transparently

Nearest frequency peer: transparently (-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.

Frequency neighbourhood for “treasonous”

Lower corpus rank = more everyday usage (inverted bar length for readability)

corpus weight

What this shows Bars show where “treasonous” sits against the nearest ranked English headwords in the FrequencyWords band, not a reprint of letter-browse containment.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for treasonous
PropertyValue
Headwordtreasonous
LanguageEnglish
Part of speechAdjective
Letters10
Frequency rank#42,961
Misspellings tracked14
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “treasonous” sits in English frequency

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).treasonouslands 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 “transparently” (#42,960), “tribalism” (#42,962), “transitory” (#42,959). Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 14 spelling variants around treasonous, anadjective. Corpus frequency is #42,961 among 3,151 “T” headwords. Dominant gloss: "Like or in the way of treason.".

Our generated misspelling index lists 14 likely wrong-spelling variants for treasonous, with forms such as "rteasonous", "terasonous", and "traesonous". 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. It is not paired with a close-neighbour confusable in our dataset, since no other headword is close enough in sound or shape to pair with it.

Etymologically, the entry records: From treason + -ous. The correct English form is treasonous, spelled T-R-E-A-S-O-N-O-U-S.

Definition

  1. 1
    Like or in the way of treason.

Recorded use

Wiktionary example

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

  1. His treasonous actions earned Benedict Arnold eternal scorn.

Etymology

From treason + -ous.

Common misspellings

Also misspelled as:

  • rteasonous
  • terasonous
  • traesonous
  • treaosnous
  • treasnoous
  • treasonnous
  • treasonosu
  • treasonouss
  • treasonuos
  • treasoonus
  • treassonous
  • tresaonous
  • trreasonous
  • ttreasonous

Misspelling Pattern Breakdown

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

rteasonous2terasonous2traesonous2treaosnous2treasnoous2treasonnous1treasonosu2treasonouss1
Edit distance from "treasonous"

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 "treasonous"?
"treasonous" is spelled T-R-E-A-S-O-N-O-U-S.
What does "treasonous" mean?
As an adjective, "treasonous" means: Like or in the way of treason.
What are common misspellings of "treasonous"?
Common misspellings include "rteasonous", "terasonous", "traesonous", "treaosnous", "treasnoous". The correct spelling is "treasonous".
What is the origin of the word "treasonous"?
From treason + -ous. 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 "treasonous", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 10 letters (nearest by frequency rank).

Similar misspelling depth

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

What to do next

You've looked up "treasonous". Here's where to go from here.

  • 14 edit-distance misspelling variants are generated for spell-check research on this headword. See variants
  • Usage frequency rank #42,961 among English headwords in this corpus. Corpus statistics
  • Browse more English words in the "T" letter cohort. T–Z browse
  • PlainSpell rotates a curated Word of the Day from the English corpus, a passive way to discover vocabulary. Word of the Day

PlainSpell is a reference corpus, not spelling advice. Verify unusual forms in context.

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