Englishfor English speakers
capable
Adjective
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If someone or something is capable of something, they can do it.
This system is capable of providing food for about 400 people.
I'm quite capable of looking after myself and I don't need you to tell me how.
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If someone is capable, they can do a particular thing well.
I'm confident I can leave everything in your capable hands.
I may be young but I can assure you I'm quite capable.
of
Preposition
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Made using.
It is a house of cards.
improvement
Noun
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An improvement makes something better; it improves something.
The improvement of this entry was well done.
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Improvement is the state of being improved or bettered.
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An improvement is an increase, advance, or growth.