Which to use
“module” and “modulus” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #8,455
- “module” frequency rank
- #39,433
- “modulus” frequency rank
- 47888
- confusion score
Side-by-Side Comparison
| Feature | module | modulus |
|---|---|---|
| Definition | A self-contained component of a system, often interchangeable, which has a well-defined interface to the other components. | The base with respect to which a congruence is computed. |
Where the eye mixes module and modulus
Muted = shared; highlighted = the visual trap. They share 5 letters in sequence.
Visual trap between module and modulus
A purely visual mix-up. module (/ˈmɒd͡ʒuːl/) and modulus (/ˈmɒdjʊləs/) 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 47888, derived from the frequency rank of both members and their visual similarity.
module is recorded at frequency rank #8,455, classified as anoun, pronounced /ˈmɒd͡ʒuːl/. modulus is at rank #39,433, tagged as anoun, pronounced /ˈmɒdjʊləs/.
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 47888, this pair ranks #198,232 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of module vs modulus
Shared letters: dlmou. Private to "module": e. Private to "modulus": s.
"module" · 6 letters · shape CVCVCV · "modulus" · 7 letters · shape CVCVCVC
Known mistypes of this pair
Frequently Asked Questions
Can "module" and "modulus" be used interchangeably?
Which is more common, "module" or "modulus"?
What to do next
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "module" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "modulus" - compare definitions side by side with the headword page. Word entry
- This pair ranks #198,232 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "module" and "modulus" also get mixed up with nearby pairs, the highest-scored neighbour is "modulus vs modus". 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 #198,232 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.