In BrE, but not in NAmE, the room that has a toilet in it is usually referred to as a toilet. This room in people's houses can also be called the lavatory, or informally, the loo. An extra downstairs toilet in a house can be called the cloakroom. In public places, especially on signs, the words toilets, Gents (for men's toilets) or Ladies (for women's toilets) are used for a room or small building containing several toilets. You might also see WC or Public Conveniences on some signs.在英式英语而非美式英语中，厕所一般称为 toilet，住宅中的厕所亦可称为 lavatory 或（非正式用法）loo。住宅楼下附加的厕所可叫做 cloakroom。在公共场所，尤其在指示牌上，toilets、Gents（男厕所）或 Ladies（女厕所）指有几个小间的厕所。有的指示牌亦可能用 WC 或 Public Conveniences。
In NAmE the room that contains a toilet is usually called the bathroom, never the toilet. A room with a toilet in a public place can also be called a restroom, ladies' room, women's room or men's room. Washroom is also used, especially in Canada.在美式英语中，厕所一般称为 bathroom，从不叫 toilet。公共厕所亦可称为 restroom、ladies' room、women's room 或 men's room，还可用 washroom，尤其是在加拿大。