autonomous

/ɔːˈtɒnəməs/

//ɔːˈtɒnəməs// adj

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

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

The verdict

“autonomous” has 13 generated spelling variants in the English index at frequency #8,892. The variants make it a useful spelling check.

#8,892
frequency rank, English
3,931
“A” headwords
13
tracked misspellings
1
confusable pair

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Self-governing. Intelligent, sentient, self-aware, thinking, feeling, governing independently.

Corpus desk

Index EN-autonomous · autonomous · English

autonomous · rank #8,892 · 13 variants · 1 confusable

  • FREQ-COMMON #8,892
  • LEN-MEGA 10 letters
  • VOW-6 6 vowels
  • CONFUS-LOW 1 pairs
  • VAR-HIGH 13 variants
  • BOOK-MID 3,931
  • PHOTO-FINISH ATM

Nearest frequency peer: ATM (-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 “autonomous”

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

corpus weight

What this shows “autonomous” 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).

autonomous vs autonomously
83% similar

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

Key facts for autonomous
PropertyValue
Headwordautonomous
LanguageEnglish
Part of speechAdjective
IPA/ɔːˈtɒnəməs/
Letters10
Frequency rank#8,892
Misspellings tracked13
Confusable pairs1
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “autonomous”

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right).autonomouslands 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 “ATM” (#8,891), “arbitrary” (#8,890), “bait” (#8,894). Among 3,931 “A” headwords, “autonomous” is #8,892. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 13 spelling variants around autonomous (IPA /ɔːˈtɒnəməs/), anadjective. Corpus frequency is #8,892 among 3,931 “A” headwords. Wiktionary lists 3 senses, so context still picks the gloss.

Our generated misspelling index lists 13 likely wrong-spelling variants for autonomous, with forms such as "atuonomous", "auotnomous", and "autnoomous". 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 1 confusable-pair relationship, "autonomously", a pairing that trips writers up because the two words share enough sound or shape to blur together.

Etymologically, the entry records: From autonomy + -ous. The correct English form is autonomous, spelled A-U-T-O-N-O-M-O-U-S.

Definition

  1. 1
    Self-governing. Intelligent, sentient, self-aware, thinking, feeling, governing independently.
  2. 2
    Acting on one's own or independently; of a child, acting without being governed by parental or guardian rules.
  3. 3
    Used with no subject, indicating an unknown or unspecified agent; used in similar situations as the passive in English (the difference being that the theme in the English passive construction is the subject, while in the Celtic autonomous construction the theme is the object and there is no subject).

Recorded use

Wiktionary example

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

  1. Though Cade has for years reported on the development of autonomous vehicles, test drives usually have so-called safety drivers who ride along and can take over in case something goes wrong.

Etymology

From autonomy + -ous.

Antonyms

heteronomous

This word in other languages

autónomo(Español)autonome(Français)autonom(Deutsch)autónomo(Português)

Common misspellings

Also misspelled as:

  • atuonomous
  • auotnomous
  • autnoomous
  • autonmoous
  • autonnomous
  • autonommous
  • autonomosu
  • autonomouss
  • autonomuos
  • autonoomus
  • autoonmous
  • auttonomous
  • uatonomous

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of autonomous - expressed in single-character edits (insert, delete, or swap one letter). Bigger bars stand out at a glance; a one-edit slip is the hardest to catch.

atuonomous2auotnomous2autnoomous2autonmoous2autonnomous1autonommous1autonomosu2autonomouss1
Edit distance from "autonomous"

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 "autonomous"?
"autonomous" is spelled A-U-T-O-N-O-M-O-U-S. The IPA pronunciation is /ɔːˈtɒnəməs/.
What does "autonomous" mean?
As an adjective, "autonomous" means: Self-governing. Intelligent, sentient, self-aware, thinking, feeling, governing independently.
What words are commonly confused with "autonomous"?
"autonomous" is commonly confused with "autonomously". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "autonomous"?
The IPA (International Phonetic Alphabet) transcription for "autonomous" is /ɔːˈtɒnəməs/. 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 "autonomous"?
From autonomy + -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 "autonomous", not the corpus desk frequency band.

Same letter count

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

yourselves#8,881censorship#8,906wheelchair#8,876constitute#8,915

Similar misspelling depth

Headwords with a similar count of attested misspellings (13 here; floor ≥5).

Brighton13 variantssymbolic13 variantssunlight13 variantsgrandson13 variants

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

Source: FrequencyWords open word-frequency list