Which to use
“spasm” and “sperm” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #35,950
- “spasm” frequency rank
- #9,102
- “sperm” frequency rank
- 45052
- confusion score
Side-by-Side Comparison
| Feature | spasm | sperm |
|---|---|---|
| Definition | A sudden, involuntary contraction of a muscle, a group of muscles, or a hollow organ. | The reproductive cell or gamete of the male; a spermatozoon. |
Where the eye mixes spasm and sperm
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.
Visual trap between spasm and sperm
A purely visual mix-up. spasm (/ˈspæz.m̩/) and sperm (/spɜɹm/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 45052, derived from the frequency rank of both members and their visual similarity.
spasm is recorded at frequency rank #35,950, classified as anoun, pronounced /ˈspæz.m̩/. sperm is at rank #9,102, tagged as anoun, pronounced /spɜɹm/.
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 45052, this pair ranks #224,850 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of spasm vs sperm
Shared letters: mps. Private to "spasm": a. Private to "sperm": er.
"spasm" · 5 letters · shape CCVCC · "sperm" · 5 letters · shape CCVCC
Known mistypes of this pair
Frequently Asked Questions
Do "spasm" and "sperm" mean the same thing in a sentence?
In ordinary English text, does "spasm" or "sperm" show up more?
After this comparison
Eye-level mix-up between "spasm" and "sperm" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "spasm" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "sperm" - compare definitions side by side with the headword page. Word entry
- This pair ranks #224,850 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "spasm" and "sperm" also get mixed up with nearby pairs, the highest-scored neighbour is "spasm vs Stasi". 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 #224,850 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.