invasion

/ɪnˈveɪʒən/

//ɪnˈveɪʒən// noun

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

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

The verdict

“invasion” has 12 generated spelling variants in the English index at frequency #4,865. The variants make it a useful spelling check.

#4,865
frequency rank, English
2,140
“I” headwords
12
tracked misspellings
4
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A military action consisting of a large armed force of one geopolitical entity entering territory controlled by another such entity, generally with the objective of conquering territory or altering...

Corpus desk

Index EN-invasion · invasion · English

invasion · rank #4,865 · 12 variants · 4 confusables

  • FREQ-COMMON #4,865
  • LEN-LONG 8 letters
  • VOW-4 4 vowels
  • CONFUS-MID 4 pairs
  • VAR-MID 12 variants
  • BOOK-MID 2,140
  • PHOTO-FINISH instantly

Nearest frequency peer: instantly (-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 “invasion”

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

corpus weight

What this shows “invasion” 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).

invasion vs invasive
75% similar
invasion vs inversion
78% similar
invasion vs infusion
75% similar

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

Key facts for invasion
PropertyValue
Headwordinvasion
LanguageEnglish
Part of speechNoun
IPA/ɪnˈveɪʒən/
Letters8
Frequency rank#4,865
Misspellings tracked12
Confusable pairs4
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “invasion”

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).invasionlands 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 “instantly” (#4,864), “Jacob” (#4,866), “implemented” (#4,863). Among 2,140 “I” headwords, “invasion” is #4,865. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 12 spelling variants around invasion (IPA /ɪnˈveɪʒən/), anoun. Corpus frequency is #4,865 among 2,140 “I” headwords. Wiktionary lists 4 senses, so context still picks the gloss.

Our generated misspelling index lists 12 likely wrong-spelling variants for invasion, with forms such as "inavsion", "innvasion", and "invaison". 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 4 confusable-pair relationships, "invasive", "inversion", "infusion", and more, where similar look or sound leads writers to substitute one word for another in context.

Etymologically, the entry records: From Middle French invasion, from Late Latin invāsiōnem, accusative of invāsiō. The correct English form is invasion, spelled I-N-V-A-S-I-O-N.

Definition

  1. 1
    A military action consisting of a large armed force of one geopolitical entity entering territory controlled by another such entity, generally with the objective of conquering territory or altering the established government.
  2. 2
    The entry without consent of an individual or group into an area where they are not wanted.
  3. 3
    The spread of cancer cells, bacteria and such to the organism.
  4. 4
    The breaching of the skin barrier.

Recorded use

Wiktionary examples

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

  1. Since Michel's days, however, many barbarian invasions had subdivided the Three Gauls into a melange of warsome states and tribes, all, nevertheless, acquiring a vaguely similar grace, if not a petite grandeur.
  2. Yeh actually works in marketing, and his weapon is a replica -- but he is spending the weekend attending an urban warfare workshop to prepare for what he sees as the very real threat of a Chinese invasion.

Etymology

From Middle French invasion, from Late Latin invāsiōnem, accusative of invāsiō.

This word in other languages

invasión(Español)invasion(Français)Invasion(Deutsch)invasão(Português)

Common misspellings

Also misspelled as:

  • inavsion
  • innvasion
  • invaison
  • invasino
  • invasionn
  • invasoin
  • invassion
  • invation
  • invsaion
  • invvasion
  • ivnasion
  • nivasion

Misspelling Pattern Breakdown

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

inavsion2innvasion1invaison2invasino2invasionn1invasoin2invassion1invation1
Edit distance from "invasion"

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 "invasion"?
"invasion" is spelled I-N-V-A-S-I-O-N. The IPA pronunciation is /ɪnˈveɪʒən/.
What does "invasion" mean?
As a noun, "invasion" means: A military action consisting of a large armed force of one geopolitical entity entering territory controlled by another such entity, generally with the objective of conquering territory or altering...
What words are commonly confused with "invasion"?
"invasion" is commonly confused with "invasive", "inversion", "infusion". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "invasion"?
The IPA (International Phonetic Alphabet) transcription for "invasion" is /ɪnˈveɪʒən/. 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 "invasion"?
From Middle French invasion, from Late Latin invāsiōnem, accusative of invāsiō. 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 "invasion", not the corpus desk frequency band.

Same letter count

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

Margaret#4,872dominant#4,851quarters#4,881complain#4,840

Similar misspelling depth

Headwords with a similar count of attested misspellings (12 here; floor ≥5).

stealing12 variantsactively12 variantstreasury12 variantsterrorism12 variants

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

Source: FrequencyWords open word-frequency list