modulus

/ˈmɒdjʊləs/

//ˈmɒdjʊləs// noun

By · According to Wiktionary data (CC BY-SA) ·

"modulus" is a 7-letter English headword indexed on PlainSpell.

The verdict

“modulus” has 10 generated spelling variants in the English index at frequency #39,433. The variants make it a useful spelling check.

#39,433
frequency rank, English
4,057
“M” headwords
10
tracked misspellings
5
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The base with respect to which a congruence is computed.

Corpus desk

Index EN-modulus · modulus · English

modulus · rank #39,433 · 10 variants · 5 confusables

  • FREQ-MID #39,433
  • LEN-LONG 7 letters
  • VOW-3 3 vowels
  • CONFUS-MID 5 pairs
  • VAR-MID 10 variants
  • BOOK-MID 4,057
  • PHOTO-FINISH monogamy

Nearest frequency peer: monogamy (+2 rank slots)

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Rank peers near misspelling magnet “modulus”

Same rarity band: useful when a typo lands on a peer headword

corpus weight

What this shows “modulus” sits among these FrequencyWords peers; misspelling depth is tracked separately in the edit-distance chart.

Source FrequencyWords open word-frequency list As of September 3, 2026

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

modulus vs modus
71% similar
modulus vs models
71% similar
modulus vs module
71% similar

Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).

Key facts for modulus
PropertyValue
Headwordmodulus
LanguageEnglish
Part of speechNoun
IPA/ˈmɒdjʊləs/
Letters7
Frequency rank#39,433
Misspellings tracked10
Confusable pairs5
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “modulus”

This scale runs from the tiny cluster of words that carry ordinary speech (left) to the long tail of words almost nobody reaches for (right).moduluslands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Ticks step logarithmically, so each one marks a roughly tenfold drop in how often the word turns up. Same rarity band neighbours include “monogamy” (#39,435), “minibus” (#39,430), “monotony” (#39,436). Among 4,057 “M” headwords, “modulus” is #39,433. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 10 spelling variants around modulus (IPA /ˈmɒdjʊləs/), anoun. Corpus frequency is #39,433 among 4,057 “M” headwords. Wiktionary lists 5 senses, so context still picks the gloss.

Our generated misspelling index lists 10 likely wrong-spelling variants for modulus, with forms such as "mdoulus", "mmodulus", and "moddulus". Every one of these variants traces to a single-character edit -- an added or dropped letter, a swapped consonant, or a vowel swap -- the kind of slip a spell-checker is built to catch. It also participates in 5 confusable-pair relationships, "modus", "models", "module", and more, where similar look or sound leads writers to substitute one word for another in context.

Etymologically, the entry records: Learned borrowing from French module as Latin modulus. Doublet of module and mold. The correct English form is modulus, spelled M-O-D-U-L-U-S.

Definition

  1. 1
    The base with respect to which a congruence is computed.
  2. 2
    The absolute value of a complex number.
  3. 3
    A coefficient that expresses how much of a certain property is possessed by a certain substance.
  4. 4
    A scalar field controlling the shape and size of extra dimensions in a compactification.
  5. 5
    An operator placed between two numbers, to get the remainder of the division of those numbers.

Etymology

Learned borrowing from French module as Latin modulus. Doublet of module and mold.

Synonyms

mod%

This word in other languages

módulo(Español)module(Français)

Common misspellings

Also misspelled as:

  • mdoulus
  • mmodulus
  • moddulus
  • modluus
  • modullus
  • modulsu
  • moduluss
  • moduuls
  • moudlus
  • omdulus

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of modulus - expressed in single-character edits (insert, delete, or swap one letter). Bigger bars stand out at a glance; a one-edit slip is the hardest to catch.

mdoulus2mmodulus1moddulus1modluus2modullus1modulsu2moduluss1moduuls2
Edit distance from "modulus"

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "modulus"?
"modulus" is spelled M-O-D-U-L-U-S. The IPA pronunciation is /ˈmɒdjʊləs/.
What does "modulus" mean?
As a noun, "modulus" means: The base with respect to which a congruence is computed.
What words are commonly confused with "modulus"?
"modulus" is commonly confused with "modus", "models", "module". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "modulus"?
The IPA (International Phonetic Alphabet) transcription for "modulus" is /ˈmɒdjʊləs/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "modulus"?
Learned borrowing from French module as Latin modulus. Doublet of module and mold. See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "modulus", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 7 letters (nearest by frequency rank).

minibus#39,430mopping#39,437myeloma#39,444negated#39,450

Similar misspelling depth

Headwords with a similar count of attested misspellings (10 here; floor ≥5).

Margate10 variantsmanhole10 variantsOliveira10 variantspiranha10 variants

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list