Which to use
“superposition” and “supposition” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #47,943
- “superposition” frequency rank
- #45,685
- “supposition” frequency rank
- 93628
- confusion score
Side-by-Side Comparison
| Feature | superposition | supposition |
|---|---|---|
| Definition | The placing of one thing on top of another. | Something that is supposed; an assumption made to account for known facts, conjecture. |
Where the eye mixes superposition and supposition
Muted = shared; highlighted = the visual trap. They share 11 letters in sequence. superposition runs 13 letters (CVCVCCVCVCVVC) against supposition's 11 (CVCCVCVCVVC) - the length gap alone is often enough to separate them once you know to check it.
Look-alike desk: superposition vs supposition
A purely visual mix-up. superposition (/ˌs(j)uː.pə(ɹ).pəˈzɪʃ.ən/) and supposition (/ˌsʌpəˈzɪʃən/) 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 93628, derived from the frequency rank of both members and their visual similarity.
superposition is recorded at frequency rank #47,943, classified as anoun, pronounced /ˌs(j)uː.pə(ɹ).pəˈzɪʃ.ən/. supposition is at rank #45,685, tagged as anoun, pronounced /ˌsʌpəˈzɪʃən/.
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 93628, this pair ranks #1,794 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of superposition vs supposition
Shared letters: inopstu. Private to "superposition": er. Private to "supposition": -.
"superposition" · 13 letters · shape CVCVCCVCVCVVC · "supposition" · 11 letters · shape CVCCVCVCVVC
Known mistypes of this pair
- superposition ← spuerposition · ssuperposition · sueprposition · supeprosition · superopsition · superpoistion · superposiiton · superposision
- supposition ← spuposition · ssupposition · supopsition · suposition · suppoistion · supposiiton · supposision · suppositino
Frequently Asked Questions
Is swapping "superposition" for "supposition" ever safe?
Frequency check: "superposition" vs "supposition" - which ranks higher?
What to do next
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "superposition" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "supposition" - compare definitions side by side with the headword page. Word entry
- This pair ranks #1,794 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- 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 #1,794 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.