recursionvsrepulsionWhat's the difference?

Which to use

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

#44,443
“recursion” frequency rank
#46,733
“repulsion” frequency rank
91176
confusion score

Side-by-Side Comparison

Feature recursion repulsion
Definition The act of recurring. The act of repelling or the condition of being repelled.

Where the eye mixes recursion and repulsion

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

9 ch
recursion
9 ch
repulsion

Why the eye confuses recursion with repulsion

A purely visual mix-up. recursion (/ɹɪˈkɜː(ɹ)ʒən/) and repulsion (/ɹɪˈpʌlʃən/) 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 91176, 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/. repulsion is at rank #46,733, tagged as anoun, pronounced /ɹɪˈpʌlʃən/.

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 91176, this pair ranks #3,502 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of recursion vs repulsion

Shared letters: einorsu. Private to "recursion": c. Private to "repulsion": lp.

"recursion" · 9 letters · shape CVCVCCVVC  ·  "repulsion" · 9 letters · shape CVCVCCVVC

Known mistypes of this pair

  • recursionercursion · rceursion · reccursion · recrusion · recurison · recurrsion · recursino · recursionn
  • repulsionerpulsion · replusion · reppulsion · repulison · repullsion · repulsino · repulsionn · repulsoin

Frequently Asked Questions

Can "recursion" and "repulsion" be used interchangeably?
No. They are said differently (/ɹɪˈkɜː(ɹ)ʒən/ versus /ɹɪˈpʌlʃən/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "recursion" vs "repulsion" - which ranks higher?
"recursion" is the more common of the two: it sits at frequency rank #44,443 in our English list, against #46,733 for "repulsion". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "recursion" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "repulsion" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #3,502 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "recursion" and "repulsion" also get mixed up with nearby pairs, the highest-scored neighbour is "recursion vs reversion". 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 #3,502 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