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English definition of “collar”

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collar

noun [C] uk   /ˈkɒl.ər/ us    /ˈkɑː.lɚ/
B1 the part around the neck of a piece of clothing, usually sewn on and sometimes made of different material: a shirt collar a fur collar a dress with a big collarB2 a strap made of leather or other strong material that is put around the neck of an animal, especially a dog or cat: I grabbed the dog by the collar and dragged it out of the room. a type of necklace (= a piece of jewellery worn around the neck): a diamond collar specialized biology an area around the neck of an animal that is coloured differently from the other parts of the body: The bird has grey feathers with a lighter collar. specialized engineering a strip of strong material that is put round a pipe or a piece of machinery to make it stronger or to join two parts together
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collar

verb [T] uk   /ˈkɒl.ər/ us    /ˈkɑː.lɚ/ informal
to catch and hold someone so that they cannot escape: She was collared by the police at the airport. to find someone and stop them going somewhere, often so that you can talk to that person about something: I was collared by Pete as I was coming out of the meeting this morning.
(Definition of collar from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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