English Reference

Word

momentum

Phoneticsmo·men·tum, stress on the second syllable

US/moʊˈmɛntəm/

UK/məʊmˈɛntəm/

Definitions

01physical motion

B2 · Upper Intermediate Uncountable noun Science Technical

n. the force that a moving object has because of its weight and speed.

n. the product of the mass and velocity of an object. Uncountable in its general physical sense; countable when referring to specific vectors.

“The heavy sled gained momentum as it slid down the snowy hill.”

“In classical mechanics, the total momentum of a closed system remains constant unless acted upon by an external force.”

Synonyms

02progress of an activity

B2 · Upper Intermediate Uncountable noun

n. the way a project or idea keeps growing and moving forward faster.

n. the impetus or driving force gained by a course of events or a social movement.

“The political campaign gathered momentum after the candidate won the first debate.”

“The reform movement lost momentum following the sudden resignation of its most charismatic and influential leader.”

Antonyms

03market trends

C1 · Advanced Uncountable noun Finance Technical

n. the speed at which the price of a stock or asset is changing.

n. the rate of acceleration of an asset's price or volume, often used as an indicator in technical analysis.

“Investors are looking for stocks with strong upward momentum this quarter.”

“Momentum traders often enter positions when they identify a clear trend, hoping to capitalise on the continued movement of the asset's price.”

Synonyms

Collocations

Common phrases and expressions where native English speakers use the word “momentum” in context.

Verb

01. gain momentum

“The environmental movement started to gain momentum after the international summit.”

verb + noun

02. gather momentum

“The protest gathered momentum as it moved through the city center.”

verb + noun

03. lose momentum

“The campaign began to lose momentum as public interest shifted toward other issues.”

verb + noun

04. maintain momentum

“It is crucial for the startup to maintain momentum during its second year of operation.”

verb + noun

Adjective

05. considerable momentum

“The project has built up considerable momentum over the last few months.”

adj + noun

06. forward momentum

“The team struggled to keep their forward momentum after the star player was injured.”

adj + noun

Noun

07. loss of momentum

“A sudden loss of momentum in the housing market has concerned many investors.”

noun + of + noun

Real-World Examples

“The present-day narrative gathers momentum when Jaycee unexpectedly reconnects with Sol, a boy who offered her a rare glimpse of tenderness at secondary school before circumstance tore them apart.”
The Guardian 6 Aug 2026
“This is to prevent players trying to break up the opposition's momentum.”
BBC News 14 Aug 2026

Idioms

Domains

FinancePhysics

This entry

Exam level
CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.C1 AdvancedIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.7.0–8.0TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 5.0–5.595–113TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.945–990EikenEikenTest in Practical English ProficiencyThe English proficiency test from the Eiken Foundation of Japan, widely taken by Japanese students. Grades run from 5 to 1, with Pre-1 and Pre-2 between them.Grade 1
Frequency
Common
Level
C1 · AdvancedOxford
Updated

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