That might not be a great example. The meat industry is pretty notorious for euphemisms. They're usually called "meat processing plants" rather than "slaughterhouses". When farmers need to conduct a mass extermination (more officially referred to as "depopulation"), one common technique is to shut off the air supply to the barn which causes the heat to rise so the animals suffocate and roast to death. The technical term for that technique is "ventilation shutdown". And that's all without getting into whether terms like "meat", "sausage", "beef", "pork", etc. are just polite ways of saying "parts of animal corpses" and "livestock" as "animals that we feel are acceptable to kill."