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English definition of “hair”

hair

noun [C or U] uk   /heər/ us    /her/
A1 the mass of thin thread-like structures on the head of a person, or any of these structures that grow out of the skin of a person or animal: He's got short dark hair. I'm going to have/get my hair cut. She brushed her long red hair. He had lost his hair by the time he was 25. He's starting to get a few grey hairs now. I found a hair in my soup.Hair
(Definition of hair from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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