Which to use
“faction” and “function” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #9,746
- “faction” frequency rank
- #1,720
- “function” frequency rank
- 11466
- confusion score
Side-by-Side Comparison
| Feature | faction | function |
|---|---|---|
| Definition | A group of people, especially within a political organization, which expresses a shared belief or opinion different from people who are not part of the group. | What something does or is used for. |
Where the eye mixes faction and function
Muted = shared; highlighted = the visual trap. They share 6 letters in sequence.
Why the eye confuses faction with function
A purely visual mix-up. faction (/ˈfæk.ʃən/) and function (/ˈfʌŋ(k)ʃən/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 11466, derived from the frequency rank of both members and their visual similarity.
faction is recorded at frequency rank #9,746, classified as anoun, pronounced /ˈfæk.ʃən/. function is at rank #1,720, tagged as anoun, pronounced /ˈfʌŋ(k)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 11466, this pair ranks #486,885 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of faction vs function
Shared letters: cfinot. Private to "faction": a. Private to "function": u.
"faction" · 7 letters · shape CVCCVVC · "function" · 8 letters · shape CVCCCVVC
Known mistypes of this pair
Frequently Asked Questions
Is swapping "faction" for "function" ever safe?
In ordinary English text, does "faction" or "function" show up more?
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 "faction" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "function" - compare definitions side by side with the headword page. Word entry
- This pair ranks #486,885 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "faction" and "function" also get mixed up with nearby pairs, the highest-scored neighbour is "faction vs factional". 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 #486,885 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.