1. The upright or turned-over neckband of a coat, jacket, dress, shirt, or blouse.
2. A leather, plastic, fabric, or metal band placed around the neck of an animal to identify it or attach it to a lead or leash.
3. An area around the neck of a bird, or an animal, that has a color or marking different from the rest its body.
4. The cushioned ring or other part of a harness that presses against a draft animal's shoulders.
5. A ring-shaped device or part on a shaft that guides, seats, or restricts another mechanical part.
6. A close-fitting necklace or one that lies flat over the shoulders.
7. A cut of meat, especially bacon, taken from an animal's neck.

1. Having found someone and stopped the person from going somewhere, often so that the other one can talk to her or him about something: Jim was collared by Mary as he was leaving the meeting because she wanted to ask him what he thought of the speech that was just presented.
2. To make an arrest for a criminal act: The police officer collared and arrested the bank robber just as he was leaving the bank.

A collar, usually for dogs, or cats, containing a chemical that repels or kills fleas.