strength

American  

[strengkth, strength, strenth] / strɛŋkθ, strɛŋθ, strɛnθ /

noun

1. the quality or state of being strong; bodily or muscular power.

2. mental power, force, or vigor.

3. moral power, firmness, or courage.

4. power by reason of influence, authority, resources, numbers, etc.

5. number, as of personnel or ships in a force or body.

   a regiment with a strength of 3000.

6. effective force, potency, or cogency, as of inducements or arguments.

   the strength of his plea.

7. power of resisting force, strain, wear, etc.

8. vigor of action, language, feeling, etc.

9. the effective or essential properties characteristic of a beverage, chemical, or the like.

   The alcoholic strength of brandy far exceeds that of wine.

   Synonyms:

   potency

10. a particular proportion or concentration of these properties; intensity, as of light, color, sound, flavor, or odor.

    coffee of normal strength.

    Synonyms:

    pungency, vividness, loudness, brightness

11. a positive or valuable attribute or quality.

    I was asked to list my strengths and weaknesses.

12. something or someone that gives one strength or is a source of power or encouragement; sustenance.

    The Bible was her strength and joy.

13. power to rise or remain firm in prices.

    Stocks continued to show strength.

    The pound declined in strength.

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idioms

1. on the strength of, on the basis of; relying on.

   He was accepted by the college on the strength of ardent personal recommendations.

strength British  

/ strɛŋθ /

noun

1. the state or quality of being physically or mentally strong

2. the ability to withstand or exert great force, stress, or pressure

3. something that is regarded as being beneficial or a source of power

   their chief strength is technology

4. potency, as of a drink, drug, etc

5. power to convince; cogency

   the strength of an argument

6. degree of intensity or concentration of colour, light, sound, flavour, etc

7. the full or part of the full complement as specified

   at full strength

   below strength

8. finance firmness of or a rising tendency in prices, esp security prices

9. archaic a stronghold or fortress

10. informal the general idea, the main purpose

    to get the strength of something

11. with ever-increasing success

12. in large numbers

13. on the basis of or relying upon

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strength More Idioms  

1. see brute force (strength); on the strength of; tower of strength.

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Related Words

Strength, power, force, might suggest capacity to do something. Strength is inherent capacity to manifest energy, to endure, and to resist. Power is capacity to do work and to act. Force is the exercise of power: One has the power to do something. He exerts force when he does it. He has sufficient strength to complete it. Might is power or strength in a great or overwhelming degree: the might of an army.

Other Word Forms

• self-strength noun
• superstrength noun

Etymology

Origin of strength

First recorded before 900; Middle English strengthe, Old English strengthu; strong, -th ¹

Explanation

Strength is the property of being physically strong (you can do, say, 100 push-ups) or mentally strong (you can calculate percentages in your head while people are shouting at you). Strength has several shades of meaning. The strength of something can be the measure of how much force or pressure it can withstand over time (like a flood wall). Or its potency (like a pesticide). Or its intensity level (like a radio signal). Its fighting capabilities (like an army). Or its specialty: A chameleon's strength is actually in its ability to blend in with its surroundings.

Example Sentences

“We think the fact that we’re not only maintaining but raising” the forecast is a sign of the company’s strength, he added.

From The Wall Street Journal • Apr. 14, 2026

Higher short interest means many have sold a stock short, so any business strength could force them to close their short positions by buying shares back.

From Barron's • Apr. 13, 2026

I do a mix of strength training, so I’m lifting weights three days a week and the other two days a week I do reformer Pilates with a trainer, which I really love.

From Los Angeles Times • Apr. 13, 2026

"Every one of them showed strength, and profound courage, as they placed the safety of others above their own, demonstrating ultimate care for others."

From BBC • Apr. 12, 2026

Through the streaming snow, he saw Renn pushing forwards with all her strength; Wolf staggering sideways, his eyes slitted against the wind.

From "Wolf Brother" by Michelle Paver

Related Words

• clout
• courage
• durability
• energy
• firmness
• fortitude
• health
• power
• stability
• tenacity
• toughness
• vigor
• vitality