1.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
2.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.
3.a type of necklace (= a piece of jewellery worn around the neck)
a diamond collar
4.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.
5.a strip of strong material that is put around a pipe or a piece of machinery to make it stronger or to join two parts together
6.to put a strap or device around an animal's neck, for example as a way of controlling it, or discovering or recording where it goes
The family dog is collared, leashed and taken for a walk.
Researchers began trapping and collaring black bears in order to track their movements.
7.to find someone and stop them in order to talk to them
A reporter collared her on her way to the gym.
I was collared by Pete as I was coming out of the meeting this morning.
8.to catch or arrest someone such as a criminal
He is known as the detective who collared a serial killer.
She was collared by the police at the airport.
9.to get something for yourself
He somehow managed to collar all the credit for other people's work.
The Treasury collars billions in tobacco duty every year.
10.the part of a piece of clothing that goes around the neck
11.A collar is also a narrow piece made of leather or other strong material that is put around the neck of an animal, esp. a dog or cat kept as a pet.
12.to catch and hold someone so that the person can’t escape
fig. We decided to skip the meeting but she collared us in the hotel lobby.