English Reference

Word

strength

US/ˈstɹɛŋkθ/

UK/stɹˈɛŋθ/

Definitions

01physical power

A2 · Elementary Uncountable noun

n. the physical power that lets you lift heavy things or move your body.

n. the quality of being physically strong; the capacity of an object or person to withstand or exert great force.

“He didn't have the strength to lift the heavy suitcase by himself.”

“The structural strength of the bridge was tested by engineers before it was officially opened to heavy vehicle traffic.”

Usage

Uncountable when referring to the general quality; countable when referring to specific forces.

Synonyms

Antonyms

02emotional or mental power

B1 · Intermediate Uncountable noun

n. the ability to stay calm and brave during a difficult or sad time.

n. mental or emotional resilience; the capacity to endure hardship or maintain resolve.

“She showed great strength after losing her job and immediately started looking for a new one.”

“It takes considerable inner strength to admit one's mistakes in a professional environment where perfection is expected.”

03intensity or potency

B1 · Intermediate Uncountable noun

n. how powerful or concentrated something is, like a smell, a light, or a drink.

n. the degree of intensity or potency of a force, substance, or feeling.

“The strength of the wind increased as the storm moved closer to the coast.”

“The pharmacist explained that the strength of the medication would be adjusted based on the patient's response to the initial dose.”

Antonyms

mildnessdilution

04a positive attribute

B1 · Intermediate Countable noun

n. a particular skill or good quality that someone has.

n. a specific quality or attribute that provides an advantage or makes someone effective.

“Public speaking is one of her greatest strengths as a manager.”

“During the interview, the candidate was asked to identify both his professional strengths and areas where he required further development.”

Antonyms

05total number of people

B2 · Upper Intermediate Uncountable noun Formal

n. the total number of people in a group, like an army or a team.

n. the full complement of personnel in a military unit or organisation.

“The police force is back to full strength after the new officers finished their training.”

“The battalion was at half strength following the winter campaign, necessitating an immediate call for reinforcements from the capital.”

Synonyms

Collocations

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

Verb

01. measure strength

“The doctor will measure your muscle strength to see how well you are recovering.”

verb + noun

02. reduce strength

“Adding too much water to the mixture will reduce the strength of the glue.”

verb + noun

03. strength assess

Etymology

From Middle English strengthe, from Old English strengþu (“strength”), from Proto-West Germanic *strangiþu (“strongness; strength”), equivalent to strong + -th (abstract nominal suffix). Cognate with Dutch strengte (“strength”), German Low German Strengde, Strengte (“harshness; rigidity; strictness; severity”).

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

Word family

NOUN

strength(B1)

Idioms

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.B1 PreliminaryIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.4.0–5.0TOEFL 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: 3.0–3.544–71TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.550–784
Frequency
Very common
Level
B1 · IntermediateOxford
Updated

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