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"Strong" = physical strength or inner resilience; "powerful" = great power, influence, or impact.
Side-by-side comparison
Physically strong, or with great emotional/mental resilience. Also: intense in flavor, smell, or effect.
He is incredibly strong. He can lift twice his own body weight.
She showed how strong she was by getting through such a difficult year.
This coffee is too strong for me. Do you have something milder?
Having great power, authority, influence, or capacity for impact. Can be physical or abstract.
That country has one of the most powerful militaries in the world.
The speech was so powerful that many people in the audience started crying.
She became one of the most powerful women in the industry.
Common mistake
- •An athlete can be "strong" (physically strong) but not necessarily "powerful" (with authority or influence).
- •A politician can be "powerful" without being especially "strong" physically.
- •When both apply, the nuance changes: "strong leader" = resilient and confident leader; "powerful leader" = leader with great authority and influence.
Trick to remember it
- •"Strong" = strength as a personal quality (physical, emotional, character).
- •"Powerful" = power as a capacity for external impact or dominance (influence, authority, effect).
- •A "strong" argument is hard to refute; a "powerful" speech moves people.
Quick rule
- •Strong = strong (internal quality, resilience, intensity).
- •Powerful = powerful (capacity for external impact, authority, influence).
Did you know?
In physics, FORCE (strong) and POWER (powerful) are technically distinct quantities: power is force multiplied by velocity. A weightlifter can generate enormous force with slow movements and relatively little power. A Formula 1 engine is "powerful" because it generates force AT GREAT SPEED. This technical physics distinction perfectly mirrors the linguistic distinction: STRONG captures the internal quality (force itself), while POWERFUL captures the capacity to do something with that force in the external world (power). In everyday language the two mix freely, but in physics and in more nuanced English usage, the difference exists and is meaningful.
Practise what you learned
Exercise 1 · Pick the right one
He's very _____ . He can carry all five bags at once.
Exercise 2 · Pick the right one
The president is one of the most _____ people in the country.
Exercise 3 · Form the word
Related word pairs
"Big" describes physical size or importance; "great" describes exceptional quality or magnitude.
Both mean "not easy", but "hard" also means physically firm or working intensely.
"Above" is at a higher level without contact; "over" implies covering, movement, or crossing.
'Currently' means 'at the present time'; 'actually' means 'in reality', not 'nowadays'.
Bryan López
Founder of SpeakUP Academy