Meaning of COLLAR in English
1》 a band of material around the neck of a shirt or other garment, either upright or turned over.
2》 a band put around the neck of a domestic animal, used to restrain or control it.
3》 a connecting band or pipe in a piece of machinery.
4》 Brit. a piece of meat rolled up and tied.
↘a cut of bacon taken from the neck of a pig.
■ verb informal seize or apprehend (someone).
ME: from OFr. colier , from L. ~e 'band for the neck', from collum 'neck'.
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004