Litter boxes are places where cats do their business, but there are many synonyms to refer to this container holding cat's waste. Some alternative names sounding familiar and popular include a sandbox, cat toilet, crate, pet toilet, tray, or pan. Some of the uncommon names for litter boxes include sifting tray, scoopable container, cat commode, or cat lavatory. Irrespective of the name, litter boxes are an essential item for cat owners to keep their house clean and hygienic. However, if you use the word "litter box," you will convey a sense of standard feline hygiene equipment.