strong

strong — adjective

1. Having great physical force or strength — able to lift heavy items, perform dema

1.adjectiveB1
Definition

Having great physical force or strength — able to lift heavy items, perform demanding tasks, or exert power through movement.

Example

Henrik is the strongest person in the village and can carry two sacks at once.

strongest + physical ability comparison

The strong current pulled the swimmer away from the shore within seconds.

strong describing a natural force (current)

Common collocations
  • strong arms
  • strong wind
  • strong current
  • strong muscles
Synonyms
  • powerful

    very close in meaning; 'powerful' often suggests the ability to control or influence, while 'strong' focuses on raw force

  • muscular

    specifically describes a body with well-developed muscles, not general force

Antonyms
  • weak

    lacking physical strength or force

Common Mistakes

This bag is very strong to carry.
This bag is very heavy to carry.
'strong' describes power or force, not weight.

2. Working well or producing good results; of a high standard or likely to succeed.

2.adjectiveB1
Definition

Working well or producing good results; of a high standard or likely to succeed.

Example

The company has built a strong team of engineers who solve problems quickly.

strong team = effective group

Lakshmi presented a strong argument that convinced the committee to change the rules.

Common collocations
  • strong team
  • strong argument
  • strong reputation
  • strong position
Synonyms
  • effective

    more precise when describing something that achieves its goal; 'strong' is broader

  • solid

    informal synonym meaning reliable and of good quality

  • powerful

    emphasises great effect or influence

Antonyms
  • weak

    not effective or of poor quality

Common Mistakes

This medicine is very strong at fighting headaches.
This medicine is very effective at fighting headaches.
'strong' here would mean the medicine has a powerful effect (sense 5); for 'working well', use 'effective' for medicine.

3. Having a lot of ability in a particular activity, subject, or type of work; doin

3.adjectiveB1
Definition

Having a lot of ability in a particular activity, subject, or type of work; doing something very well.

Example

Quan is particularly strong in mathematics and often helps his classmates with homework.

strong in + academic subject

Anna's strongest subject at university was Chinese literature.

strongest subject = best at

Common collocations
  • strong in mathematics
  • strong at languages
  • strong points
  • strong subject
Synonyms
  • skilled

    more direct for learned abilities; 'strong' is slightly less formal

  • talented

    suggests natural ability rather than learned skill

  • capable

    focuses on being able to do something well, less about excellence

Antonyms
  • weak

    not good at something; poor in ability

Usage Note

Often followed by 'in' or 'at' to specify the area of skill: 'strong in mathematics', 'strong at public speaking'.

4. Firmly held, expressed with confidence, and difficult to change or argue against

4.adjectiveB1
Definition

Firmly held, expressed with confidence, and difficult to change or argue against — used about opinions, beliefs, evidence, or feelings.

Example

Eve holds a strong belief that education should be free for everyone.

strong belief = firmly held opinion

The police found strong evidence linking the suspect to the crime scene.

strong evidence = convincing proof

Common collocations
  • strong belief
  • strong opinion
  • strong evidence
  • strong feelings
  • strong objection
Synonyms
  • firm

    very close in meaning; 'firm' is slightly more formal and more about resolve than conviction

  • determined

    focuses on the person's will to act, not the belief itself

  • resolute

    more formal; describes someone who will not change their mind

Antonyms
  • weak

    easily changed or not convincing

  • uncertain

    not held with confidence

Usage Note

Commonly modifies nouns such as 'opinion', 'belief', 'view', 'evidence', 'feeling', 'objection', and 'defence'. Not used for physical objects.

Common Mistakes

❌ 'I have a strong feeling that he is lying.' (correct in the emotional sense) — Note: 'strong feeling' can mean a firm intuition OR a deep emotion. Context makes the meaning clear.

5. Easily noticed by the senses — used for tastes, smells, colours, or effects that

5.adjectiveB1
Definition

Easily noticed by the senses — used for tastes, smells, colours, or effects that are intense rather than gentle.

Example

The cheese had such a strong smell that Ingrid opened the kitchen window.

strong smell + result clause

Henrik prefers strong coffee with no sugar or milk added.

strong coffee = concentrated, not diluted

Common collocations
  • strong smell
  • strong taste
  • strong coffee
  • strong cheese
  • strong perfume
Synonyms
  • intense

    very close in meaning; 'intense' is slightly more formal

  • pungent

    specifically for sharp smells or tastes that are strong and sometimes unpleasant

  • potent

    suggests a strong effect, especially of alcohol or medicine

Antonyms
  • mild

    not strong in taste, smell, or effect

  • weak

    lacking strength of flavour; often implies diluted

Usage Note

Describes sensory experiences. The opposite 'weak' is less common for taste — 'mild' or 'light' is often preferred.

6. Not easily broken, damaged, or destroyed; able to support heavy weight, resist p

6.adjectiveB1
Definition

Not easily broken, damaged, or destroyed; able to support heavy weight, resist pressure, or stay healthy.

Example

The bridge is made of strong steel and supports heavy trucks crossing the river.

strong steel = resistant material

Nkechi has a strong immune system, so she rarely catches colds during winter.

strong immune system = healthy, resistant to illness

Common collocations
  • strong material
  • strong immune system
  • strong rope
  • strong structure
Synonyms
  • sturdy

    specifically for objects that are solidly built and unlikely to fall apart

  • durable

    describes things that last a long time without wearing out

  • robust

    suggests strength and healthiness; often used for systems or bodies

  • tough

    informal; describes something hard to damage or someone who endures difficulty

Antonyms
  • fragile

    easily broken or damaged

  • weak

    lacking strength; easily broken or affected

Common Mistakes

I feel strong enough to finish the marathon.' (correct for health) — Note: 'strong' for health is common and correct; no mistake to flag here. The common error is using 'strong' where 'hard' or 'tough' is needed: ❌ 'This meat is very strong to chew.
This meat is very tough to chew.

7. showing your opinion or position in a direct, forceful manner — often in speakin

7.adjectiveB2
Definition

showing your opinion or position in a direct, forceful manner — often in speaking or writing meant to be clear and definite rather than gentle or polite.

Example

Senator Park issued a strong statement rejecting the proposed tax increase.

strong statement — a forceful public comment

Esme's strong criticism of the plan made several board members uncomfortable.

Common collocations
  • strong statement
  • strong criticism
  • strong letter
  • strong opinion
  • strong language
  • strong position
Synonyms
  • forceful

    similar in meaning but slightly less emotional than 'strong'

  • vehement

    more formal and intense, suggesting great passion or anger

  • emphatic

    focuses on showing that something is important or certain

Antonyms
  • mild

    gentle and not forceful

  • hesitant

    showing doubt or uncertainty rather than force

Usage Note

Often used with nouns like 'statement', 'criticism', 'letter', 'opinion', 'position'.

8. describing particular words or phrases that are intentionally blunt, cutting, or

8.adjectiveB2
Definition

describing particular words or phrases that are intentionally blunt, cutting, or plain in what they say — rather than describing how the speaker generally behaves.

Example

The manager's strong words during the meeting upset several junior staff members.

strong words — direct, blunt phrasing

Sofie's reply contained some strong phrases that surprised her colleagues.

Common collocations
  • strong words
  • strong terms
  • strong phrasing
  • strong expression
Synonyms
  • blunt

    more direct and often rude in tone

  • harsh

    implies the words are unkind or severe

  • sharp

    suggests the words are critical and cutting

Antonyms
  • polite

    showing good manners and consideration

  • gentle

    soft and kind in wording

Usage Note

Distinguish from sense 7: sense 7 describes the person's style of expression, while this sense describes the actual words or phrases used.

9. containing swear words or other expressions that most people find insulting, oft

9.adjectiveB2
Definition

containing swear words or other expressions that most people find insulting, often used when someone is very angry.

Example

The movie was rated for adults because it contained strong language throughout.

strong language = swear words

Yael shouted a stream of strong words at the driver who nearly hit his bicycle.

Common collocations
  • strong language
  • strong material
  • strong words
Synonyms
  • profane

    more formal; refers specifically to disrespectful or irreverent language

  • foul

    emphasises the unpleasant or disgusting nature of the words

  • crude

    suggests the language is rough and vulgar rather than necessarily swearing

Antonyms
  • clean

    free from rude or offensive words

  • polite

    using socially acceptable, respectful language

Usage Note

Common in TV and film rating systems: 'contains strong language' means swear words are used. Distinguish from sense 8, which covers blunt but not necessarily offensive words.

Common Mistakes

He used strong words to explain the problem clearly.' (when meaning forceful but clean language).
He used strong words to express his anger, including several swear words.
'strong words' in this sense means offensive or rude words, not just forceful ones.

10. having a high chance of taking place or being true, based on solid evidence or g

10.adjectiveB2
Definition

having a high chance of taking place or being true, based on solid evidence or good reasons.

Example

There is a strong chance of rain this afternoon, so bring an umbrella.

strong chance / strong possibility

Tomás is a strong candidate for the promotion with his years of experience.

strong candidate

Common collocations
  • strong chance
  • strong possibility
  • strong candidate
  • strong signs
  • strong evidence
  • strong case
Synonyms
  • likely

    less emphatic; simply probable rather than very probable

  • probable

    more formal; suggests a high degree of certainty

  • compelling

    used for arguments or evidence that strongly suggest something is true

Antonyms
  • unlikely

    not expected to happen

  • weak

    suggesting little chance of success or truth

11. used directly after a number to show how many people or things make up a group.

11.adjectiveB2
Definition

used directly after a number to show how many people or things make up a group.

Example

The protest was fifty thousand strong, filling the streets of the capital.

number + strong = group size

The company has a sales team two hundred strong across the whole region.

Common collocations
  • [number] + strong
  • thousand strong
  • hundred strong
Synonyms
  • in number

    a phrase used similarly after numbers to indicate group size

Grammar Patterns

number + strong

Usage Note

Always appears immediately after a number (e.g. '100 strong', 'twenty strong'). Cannot be used before a noun (*'a strong team of fifty').

Common Mistakes

A strong team of fifty people arrived.
A team fifty strong arrived.
'strong' must come directly after the number, not before the noun.

12. a type of flour with a high level of gluten, which gives bread and pizza bases a

12.adjectiveB2
Definition

a type of flour with a high level of gluten, which gives bread and pizza bases a firm, chewy texture.

Example

Christopher bought strong flour to bake bread for the weekend farmers' market.

strong flour for bread

For a crispy pizza base, use strong flour rather than the plain type.

Common collocations
  • strong flour
  • strong bread flour
  • strong white flour
  • strong wholemeal flour
Synonyms
Antonyms
  • plain flour

    all-purpose flour with less gluten, used for cakes and pastries

Usage Note

This term is more common in British English. In American English, 'bread flour' is the usual term for the same product.

13. in chemistry, describing an acid or base whose molecules almost fully break apar

13.adjectiveC1
Definition

in chemistry, describing an acid or base whose molecules almost fully break apart into charged particles when dissolved in water — for example, hydrochloric acid or sodium hydroxide.

Example

In the lab, Layla carefully poured the strong acid into a glass beaker.

strong + acid for fully ionising acids

Strong alkalis can cause serious burns if they touch bare skin.

Common collocations
  • strong acid
  • strong alkali
  • strong base
  • strong electrolyte
Synonyms
  • concentrated

    refers to amount of substance per volume, not degree of ionisation

Antonyms
  • weak

    describes an acid or base that only partly ionises in water

Grammar Patterns

strong + noun (acid/alkali/base)

Usage Note

Usually placed before nouns such as acid, alkali, base, or electrolyte. The opposite in this chemical sense is weak.

Common Mistakes

This is a strong solution.
This is a concentrated solution.
'strong' in chemistry refers to how completely a substance ionises, not how much is dissolved.

14. existing or happening in large amounts, numbers, or degree — used with things li

14.adjectiveB2
Definition

existing or happening in large amounts, numbers, or degree — used with things like support, demand, sales, evidence, or turnout to indicate impressive quantity.

Example

The festival drew a strong crowd of more than ten thousand visitors.

strong + crowd for a large number of people

Jiwoo received strong support from her team throughout the project.

strong support for abundant backing or approval

Common collocations
  • strong support
  • strong evidence
  • strong demand
  • strong sales
  • strong turnout
  • strong presence
Synonyms
  • large

    more general; strong adds the nuance of being notable or impressive

  • abundant

    more formal; suggests plentiful supply

  • substantial

    neutral register; emphasises size or importance

Antonyms
  • weak

    opposite in this sense, e.g. weak demand, weak support

  • small

    direct antonym for quantities

Grammar Patterns

strong + noun (support/evidence/demand)

15. describes a connection, bond, tradition, or feeling that has become deep and las

15.adjectiveB2
Definition

describes a connection, bond, tradition, or feeling that has become deep and lasting — continuing to exist and function well over many years.

Example

Beatrix and her partner have a strong relationship that has lasted for decades.

strong relationship for a lasting, healthy connection

The university maintains a strong tradition of academic excellence.

strong tradition for a deeply rooted custom

Common collocations
  • strong relationship
  • strong tradition
  • strong ties
  • strong bond
  • strong foundation
Synonyms
  • firm

    suggests stability and reliability, often of beliefs or positions

  • solid

    informal; emphasises dependability and soundness

  • secure

    highlights safety and low risk of collapse

Antonyms
  • fragile

    suggests something easily broken or ended

  • weak

    opposite in this sense

Grammar Patterns

strong + noun (relationship/tradition/bond)

Usage Note

Often applied to relationships, institutions, traditions, or bonds that have survived challenges and lasted over time.

16. Having a high economic value or price that tends to stay high or increase over t

16.adjectiveB2
Definition

Having a high economic value or price that tends to stay high or increase over time.

Example

The Japanese yen remained strong against the US dollar this quarter.

strong + currency for high and rising exchange value

Investors showed confidence in the company's strong share price.

Common collocations
  • strong currency
  • strong economy
  • strong market
  • strong growth
  • strong performance
Synonyms
  • robust

    formal; suggests healthy, vigorous growth

  • buoyant

    formal; describes a market with rising prices

Antonyms
  • weak

    describes a falling or low-value currency or market

Grammar Patterns

strong + noun (currency/economy/market)

Usage Note

Commonly used with currency names (the dollar, the yen, the euro) to describe a high exchange rate, or with terms like market, economy, and growth to describe rising prices and healthy financial conditions.

Idioms

Used to say that someone's comment is too harsh or unfair.

Calling him a liar is a bit strong, don't you think?

Sara felt the teacher's criticism was a bit strong for a small mistake.

Something that gives a person an advantage over others in a situation.

Her fluency in Mandarin was her strongest card in the job interview.

Diego played his winning card by offering a lower price.

To be very good at a particular activity or subject.

Maya is strong on mathematics but struggles with writing.

Is Brian strong on remembering historical dates?

To be a subject or skill that someone knows a lot about.

Cooking is not my strong suit, but I can bake cookies.

Logic puzzles are Aiden's strong suit; he solves them quickly.

To express feelings, especially romantic interest, in a very direct and forceful way.

He came on strong at the party, making everyone uncomfortable.

Did she come on strong when you first met her?

Continuing to be healthy, active, or successful after a long time.

My grandfather is 85 and still going strong.

The bakery opened in 1990 and is still going strong.

To be able to handle unpleasant or shocking things without feeling sick or upset.

You need a strong stomach to watch that horror movie.

Does your brother have a strong stomach for medical procedures?

strong — adverb

Word family

Synonym discussion

Sense: adjective/1

All five words describe the ability to exert force or resist pressure, but they differ in scope and context. Strong is the most general word — it covers raw physical force (a strong wind), personal fitness (strong arms), and metaphorical strength (a strong argument). Powerful focuses on the ability to produce an effect or exert control; a powerful engine moves a vehicle, while a strong engine simply resists damage. It also extends naturally to influence (a powerful person), where strong is less common. Muscular is narrow — it only describes bodies with well-developed muscles, not objects or forces. Sturdy applies mainly to objects (a sturdy chair) and implies solid, reliable construction rather than raw force. Robust is more formal and suggests vigorous health or resilience (robust economy, robust immune system), overlapping with strong in sense 6 (DURABLE) but adding a nuance of thriving, not just surviving.

Common collocations

Adverbs

  • extremely strong
  • incredibly strong
  • strong enough
  • stronger than

Phrases

  • strong enough to…
  • too strong for…
  • as strong as…
  • grow stronger

Etymology

Proto-Indo-EuropeanProto-GermanicOld EnglishMiddle EnglishEnglish

Strong comes from Old English 'strang,' which meant powerful, severe, or physically forceful. That Old English word goes back to a Proto-Germanic root *strangaz, meaning 'tight' or 'strong' — the same root that later gave German 'stark' (strong). Beyond Germanic, the word traces to the Proto-Indo-European root *strenk-, 'to pull tight,' which also produced English 'string' (something pulled taut) and 'strict' (drawn tight, hence demanding). The core idea of being taut or resistant to pressure has stayed with 'strong' across its many meanings: physical power, firm beliefs, intense flavours, durable materials, and high financial value.