Englishfor English speakers
doctor
Noun
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A person who helps people who are sick, and looks after their health.
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A person who can work very well about a particular thing and is given the title Doctor by a university, for example a doctor in psychology could be called Doctor John Smith.
doctor
Verb
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If you doctor someone, you act as a medical doctor towards them.
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If you doctor something or someone, you change them.
roll
Verb
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To roll something is to make it round by bending it around many times.
She rolled the newspaper into a long, thin rod.
roll
Noun
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A roll is something round that was made by rolling.
The cloth in the store is in big rolls.
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A roll is a bun: a small, round piece of bread.
I like jelly rolls!