Which to use
“Sims” is a name and “sis” is a noun - they look or sound alike but fill different roles in a sentence.
- #9,958
- “Sims” frequency rank
- #12,501
- “sis” frequency rank
- 22459
- confusion score
Side-by-Side Comparison
| Feature | Sims | sis |
|---|---|---|
| Definition | A surname transferred from the given name. | Clipping of sister. |
Where the eye mixes Sims and sis
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.
Look-alike desk: Sims vs sis
These two trip readers on the page rather than in the ear: Sims is /sɪmz/ while sis is /sɪs/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (name vs noun), which is usually the fastest check. Our composite confusion score for this pair is 22459, derived from the frequency rank of both members and their visual similarity.
Sims is recorded at frequency rank #9,958, classified as aname, pronounced /sɪmz/. 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 22459, this pair ranks #416,426 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of Sims vs sis
Shared letters: is. Private to "Sims": m. Private to "sis": -.
"Sims" · 4 letters · shape CVCC · "sis" · 3 letters · shape CVC
Known mistypes of this pair
- Sims ← isms · simss · sism · smis · ssims
Frequently Asked Questions
Is swapping "Sims" for "sis" ever safe?
In ordinary English text, does "Sims" or "sis" show up more?
What to do next
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "Sims" 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 #416,426 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "Sims" 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 #416,426 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.