recursionvsreversionWhich spelling fits?

Which to use

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

#44,443
“recursion” frequency rank
#47,305
“reversion” frequency rank
91748
confusion score

Side-by-Side Comparison

Feature recursion reversion
Definition The act of recurring. The action of reverting something.

Where the eye mixes recursion and reversion

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

9 ch
recursion
9 ch
reversion

Visual trap between recursion and reversion

A purely visual mix-up. recursion (/ɹɪˈkɜː(ɹ)ʒən/) and reversion (/ɹɪˈvɜːʒ(ə)n̩/) 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 91748, derived from the frequency rank of both members and their visual similarity.

recursion is recorded at frequency rank #44,443, classified as anoun, pronounced /ɹɪˈkɜː(ɹ)ʒən/. reversion is at rank #47,305, tagged as anoun, pronounced /ɹɪˈvɜːʒ(ə)n̩/.

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 91748, this pair ranks #3,077 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of recursion vs reversion

Shared letters: einors. Private to "recursion": cu. Private to "reversion": v.

"recursion" · 9 letters · shape CVCVCCVVC  ·  "reversion" · 9 letters · shape CVCVCCVVC

Known mistypes of this pair

  • recursionercursion · rceursion · reccursion · recrusion · recurison · recurrsion · recursino · recursionn
  • reversionerversion · reevrsion · reverison · reverrsion · reversino · reversionn · reversoin · reverssion

Frequently Asked Questions

Can "recursion" and "reversion" be used interchangeably?
No. They are said differently (/ɹɪˈkɜː(ɹ)ʒən/ versus /ɹɪˈvɜːʒ(ə)n̩/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "recursion" vs "reversion" - which ranks higher?
"recursion" is the more common of the two: it sits at frequency rank #44,443 in our English list, against #47,305 for "reversion". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Eye-level mix-up between "recursion" and "reversion" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "recursion" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "reversion" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #3,077 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "recursion" and "reversion" also get mixed up with nearby pairs, the highest-scored neighbour is "recursion vs repulsion". 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 #3,077 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