Meaning of COLLAR in English

I. col ‧ lar 1 S3 /ˈkɒlə $ ˈkɑːlər/ BrE AmE noun [countable]

[ Date: 1300-1400 ; Language: Old French ; Origin: coler , from Latin collare , from collum 'neck' ]

1 . CLOTHING the part of a shirt, coat etc that fits around your neck, and is usually folded over:

He grabbed me by the collar.

He loosened his collar and tie.

2 .

CAT/DOG a narrow band of leather or plastic that is fastened around an animal’s neck

3 . INJURED NECK an object that someone wears around their neck to support it when it has been injured

4 . BUSINESS a way of making sure that ↑ stock s you own do not lose money, even if their price goes down

5 . MACHINE a circular ring that goes round a pipe to make it stronger, especially where two pipes join together

6 . COLOURED FUR/FEATHERS a band of fur, feathers, or skin around an animal’s neck that is a different colour from the rest of the animal

⇨ ↑ blue-collar , ↑ dog collar , ↑ white-collar

II. collar 2 BrE AmE verb [transitive]

1 . to catch someone and hold them so that they cannot escape:

The police collared him less than 20 minutes after the robbery.

2 . to find someone so that you can talk to them, especially when they would prefer to avoid you:

He collared her in the staff room at lunchtime and started telling her about his holiday plans.

3 . high-collared/open-collared/fur-collared etc used about clothes that have a particular type of collar:

a high-collared blouse

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.