Englishfor English speakers
chronic
Adjective
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If something is chronic, it happens all the time.
Michelle is a chronic worrier who gets upset about everything.
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If something is chronic, it has happened for a long time.
My father has chronic back pain since he was injured at work 5 years ago.
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If something is chronic, it is difficult to stop.
My brother is a chronic smoker and is unable to quit.
carrier
Noun
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A carrier is a person who carries.
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A carrier is a thing that carries another thing.