incursionvsinversionWhich spelling fits?

Which to use

“incursion” and “inversion” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#30,842
“incursion” frequency rank
#20,675
“inversion” frequency rank
51517
confusion score

Side-by-Side Comparison

Feature incursion inversion
Definition A military action consisting of armed forces of one geopolitical entity entering territory controlled by another such entity, generally with the objective of destruction, plunder, or bodily harm rather than an intent to conquer territory or alter the established government; contrast invasion in its narrow sense. The action of inverting.

Where the eye mixes incursion and inversion

Muted = shared; highlighted = the visual trap. They share 7 letters in sequence.

9 ch
incursion
9 ch
inversion

Visual trap between incursion and inversion

A purely visual mix-up. incursion (/ɪŋˈkɜː(ɹ)ʒən/) and inversion (/ɪnˈvɚ.ʒən/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 51517, derived from the frequency rank of both members and their visual similarity.

incursion is recorded at frequency rank #30,842, classified as anoun, pronounced /ɪŋˈkɜː(ɹ)ʒən/. inversion is at rank #20,675, tagged as anoun, pronounced /ɪnˈvɚ.ʒən/.

Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.

With a confusion score of 51517, this pair ranks #164,812 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of incursion vs inversion

Shared letters: inors. Private to "incursion": cu. Private to "inversion": ev.

"incursion" · 9 letters · shape VCCVCCVVC  ·  "inversion" · 9 letters · shape VCCVCCVVC

Known mistypes of this pair

  • incursionicnursion · inccursion · incrusion · incurison · incurrsion · incursino · incursionn · incursoin
  • inversioninevrsion · innversion · inverison · inverrsion · inversino · inversionn · inversoin · inverssion

Frequently Asked Questions

Do "incursion" and "inversion" mean the same thing in a sentence?
No. They are said differently (/ɪŋˈkɜː(ɹ)ʒən/ versus /ɪnˈvɚ.ʒən/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "incursion" or "inversion"?
"inversion" is the more common of the two: it sits at frequency rank #20,675 in our English list, against #30,842 for "incursion". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "incursion" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "inversion" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #164,812 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "incursion" and "inversion" also get mixed up with nearby pairs, the highest-scored neighbour is "inversion vs Iverson". Nearby pair
  • Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes

Confusion rank #164,812 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list