momentum

/ˌmə(ʊ)ˈmɛntəm/

//ˌmə(ʊ)ˈmɛntəm// noun

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

"momentum" is a 8-letter English headword indexed on PlainSpell.

The verdict

“momentum” is a regularly-used English word, ranked #6,379 in English word frequency and used as a noun.

#6,379
frequency rank, English
8
letters
12
tracked misspellings
3
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Of a body in motion: the tendency of a body to maintain its inertial motion; the product of its mass and velocity, or the vector sum of the products of its masses and velocities.

Visual similarity to commonly confused words

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

momentum vs moment
75% similar
momentum vs moments
75% similar
momentum vs momentous
78% similar

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

Key facts for momentum
PropertyValue
Headwordmomentum
LanguageEnglish
Part of speechNoun
IPA/ˌmə(ʊ)ˈmɛntəm/
Letters8
Frequency rank#6,379
Misspellings tracked12
Confusable pairs3
SourceWiktionary (kaikki.org)

Where “momentum” sits in English frequency

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right). momentum lands here:

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

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Spelling & Dictionary Insight

The English entry for momentum is 8 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /ˌmə(ʊ)ˈmɛntəm/. Corpus data places it at rank #6,379 in overall English word frequency, indicating it appears regularly in written and spoken text. Wiktionary records 4 distinct senses for this headword, so context determines which meaning a reader should apply.

Our generated misspelling index lists 12 likely wrong-spelling variants for momentum, with forms such as "mmoentum", "mmomentum", and "moemntum". Each variant is a distinct typo pattern an edit-distance generator flags, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution. It also participates in 3 confusable-pair relationships, "moment", "moments", "momentous", since the words sound or look close enough that writers reach for the wrong one mid-sentence.

Etymologically, the entry records: From Latin mōmentum. Doublet of moment and movement. The correct English form is momentum, spelled M-O-M-E-N-T-U-M.

Definition

  1. 1
    Of a body in motion: the tendency of a body to maintain its inertial motion; the product of its mass and velocity, or the vector sum of the products of its masses and velocities.
  2. 2
    Strength or force gained by motion or movement.
  3. 3
    The impetus, either of a body in motion, or of an idea or course of events; a moment.
  4. 4
    The surmise of an accelerated price trend in the analysis (technical or fundamental) of an asset.

Etymology

From Latin mōmentum. Doublet of moment and movement.

This word in other languages

cantidad de movimiento(Español)quantité de mouvement(Français)Impuls(Deutsch)momento(Português)

Common misspellings

Also misspelled as: mmoentum,mmomentum,moemntum,momenntum,momentmu,momenttum,momentumm,momenutm,mometnum,mommentum,momnetum,ommentum

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of momentum - measured in single-character edits (insert, delete, or substitute a letter). Larger bars are easier to catch; one-edit slips are the sneakiest.

mmoentum2mmomentum1moemntum2momenntum1momentmu2momenttum1momentumm1momenutm2
Edit distance from "momentum"

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 "momentum"?
"momentum" is spelled M-O-M-E-N-T-U-M. The IPA pronunciation is /ˌmə(ʊ)ˈmɛntəm/.
What does "momentum" mean?
As a noun, "momentum" means: Of a body in motion: the tendency of a body to maintain its inertial motion; the product of its mass and velocity, or the vector sum of the products of its masses and velocities.
What words are commonly confused with "momentum"?
"momentum" is commonly confused with "moment", "moments", "momentous". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "momentum"?
The IPA (International Phonetic Alphabet) transcription for "momentum" is /ˌmə(ʊ)ˈmɛntəm/. 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 "momentum"?
From Latin mōmentum. Doublet of moment and movement. 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.

Using “momentum”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct English spelling is M-O-M-E-N-T-U-M - every other letter order is a misspelling in standard orthography.
  • Say it as /ˌmə(ʊ)ˈmɛntəm/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Don't mix it up with “moment” - see the side-by-side comparison. momentum vs moment
  • Browse more English words and confusable pairs in the same reference. English words
Data Source

Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.

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

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list