Englishfor English speakers
entail
Verb
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If mathx/math entails mathy/math, mathy/math is involved in mathx/math as an important part.
I accept the office of the President and all of the responsibilities it entails.
interest
Noun
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When someone wants to know more about something or likes to do something, we say the person has an interest in it.
She has a strong interest in art. She is going to go to an art school.
What are your interests?
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When something is important to a person, or if good things happening to the thing are good for the person, we say that the person has an interest in the thing.
Because I own a house on this street, I have an interest in keeping the street clean.
I'm doing this to look after my own interests.
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When someone borrows money, they have to give back more money than they borrowed. The extra money they have to pay is called interest.
The bank gives me two percent interest per year on the money in my account.
interest
Verb
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If someone is interested, they are curious and want to find out about something.
I am interested in researching flowers.
Does maths interest you?