reductionvsrejectionConfusable pair

Which to use

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

#3,716
“reduction” frequency rank
#8,339
“rejection” frequency rank
12055
confusion score

Side-by-Side Comparison

Feature reduction rejection
Definition The act, process, or result of reducing. The act of rejecting.

Where the eye mixes reduction and rejection

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

9 ch
reduction
9 ch
rejection

Visual trap between reduction and rejection

A purely visual mix-up. reduction (/ɹɪˈdʌk.ʃən/) and rejection (/ɹɪˈd͡ʒɛk.ʃən/) 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 12055, derived from the frequency rank of both members and their visual similarity.

reduction is recorded at frequency rank #3,716, classified as anoun, pronounced /ɹɪˈdʌk.ʃən/. rejection is at rank #8,339, tagged as anoun, pronounced /ɹɪˈd͡ʒɛk.ʃən/.

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 12055, this pair ranks #483,673 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of reduction vs rejection

Shared letters: ceinort. Private to "reduction": du. Private to "rejection": j.

"reduction" · 9 letters · shape CVCVCCVVC  ·  "rejection" · 9 letters · shape CVCVCCVVC

Known mistypes of this pair

  • reductionerduction · rdeuction · redcution · redduction · reducction · reduciton · reducsion · reductino
  • rejectionerjection · reejction · rejcetion · rejecction · rejeciton · rejecsion · rejectino · rejectionn

Frequently Asked Questions

Is swapping "reduction" for "rejection" ever safe?
No. They are said differently (/ɹɪˈdʌk.ʃən/ versus /ɹɪˈd͡ʒɛk.ʃən/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "reduction" vs "rejection" - which ranks higher?
"reduction" is the more common of the two: it sits at frequency rank #3,716 in our English list, against #8,339 for "rejection". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

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

  • Full dictionary entry for "reduction" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "rejection" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #483,673 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "reduction" and "rejection" also get mixed up with nearby pairs, the highest-scored neighbour is "rejection vs resection". 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 #483,673 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