Which to use
“sides” and “sis” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #1,918
- “sides” frequency rank
- #12,501
- “sis” frequency rank
- 14419
- confusion score
Side-by-Side Comparison
| Feature | sides | sis |
|---|---|---|
| Definition | plural of side. | Clipping of sister. |
Where the eye mixes sides and sis
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.
Look-alike desk: sides vs sis
A purely visual mix-up. sides (/saɪdz/) and sis (/sɪs/) 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 2 letter(s) in length. Our composite confusion score for this pair is 14419, derived from the frequency rank of both members and their visual similarity.
sides is recorded at frequency rank #1,918, classified as anoun, pronounced /saɪdz/. sis is at rank #12,501, tagged as anoun, pronounced /sɪs/.
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 14419, this pair ranks #470,160 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of sides vs sis
Shared letters: is. Private to "sides": de. Private to "sis": -.
"sides" · 5 letters · shape CVCVC · "sis" · 3 letters · shape CVC
Known mistypes of this pair
- sides ← isdes · sdies · siddes · sidess · sidse · sieds · ssides
Frequently Asked Questions
Do "sides" and "sis" mean the same thing in a sentence?
In ordinary English text, does "sides" or "sis" 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 "sides" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "sis" - compare definitions side by side with the headword page. Word entry
- This pair ranks #470,160 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "sides" and "sis" also get mixed up with nearby pairs, the highest-scored neighbour is "sis vs suds". 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 #470,160 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.