Which to use
“semis” and “sepsis” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #26,958
- “semis” frequency rank
- #28,714
- “sepsis” frequency rank
- 55672
- confusion score
Side-by-Side Comparison
| Feature | semis | sepsis |
|---|---|---|
| Definition | plural of semi | A serious medical condition in which the whole body is inflamed, causing injury to its own tissues and organs as a response to infection. |
Where the eye mixes semis and sepsis
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. semis runs 5 letters (CVCVC) against sepsis's 6 (CVCCVC) - the length gap alone is often enough to separate them once you know to check it.
Visual trap between semis and sepsis
A purely visual mix-up. semis (/ˈsɛmiːz/) and sepsis (/ˈsɛpsɪs/) 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 55672, derived from the frequency rank of both members and their visual similarity.
semis is recorded at frequency rank #26,958, classified as anoun, pronounced /ˈsɛmiːz/. sepsis is at rank #28,714, tagged as anoun, pronounced /ˈsɛpsɪs/.
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 55672, this pair ranks #131,863 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of semis vs sepsis
Shared letters: eis. Private to "semis": m. Private to "sepsis": p.
"semis" · 5 letters · shape CVCVC · "sepsis" · 6 letters · shape CVCCVC
Known mistypes of this pair
Frequently Asked Questions
Do "semis" and "sepsis" mean the same thing in a sentence?
Which is more common, "semis" or "sepsis"?
Useful next steps
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "semis" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "sepsis" - compare definitions side by side with the headword page. Word entry
- This pair ranks #131,863 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "semis" and "sepsis" also get mixed up with nearby pairs, the highest-scored neighbour is "semis vs SETI". 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 #131,863 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.