1. the part of a shirt, dress, or coat that fits around the neck
2. a band of leather or other material put around the neck of a dog or other animal

1. to catch and hold someone
Usage: informal
2. to approach someone and speak to them, especially when they are trying to avoid you
Usage: informal

Examples

• He loosened his collar and tie after work.
• The dog’s collar had his name and address on it.
• She turned up her coat collar against the cold wind.
• The police collared the suspect as he tried to flee.
• The reporter collared the senator outside the building.
• My cat wears a bright red collar with a bell.
• He was wearing a shirt with a stiff white collar.