A butcher is a shopkeeper who cuts up and sells meat. Some butchers also kill animals for meat and make foods such as sausages and meat pies.

A butcher or a butcher's is a shop where meat is sold.

To butcher an animal means to kill it and cut it up for meat.

You can refer to someone as a butcher when they have killed a lot of people in a very cruel way, and you want to express your horror and disgust.

You can say that someone has butchered people when they have killed a lot of people in a very cruel way, and you want to express your horror and disgust.