WC
comfort station
IPA: / ˈkʌmfərt ˈsteɪʃn̩ /Restroom.
convenience · public convenience · public lavatory · public toilet · restroom · toilet facility · wash room
commode
IPA: / kɔmˈɔd /1. A woman's ornate cap popular in the late 17th and early 18th centuries
2. A low chest of drawers; A movable washstand with a cupboard underneath; A boxlike structure holding a chamber pot under an open seat; also chamber pot; Toilet
washroom
IPA: / wɑːʃruːm /Especially a lavatory in a public place.
water closet
IPA: / wˈɔːtə-klozˈɛ /A toilet in England; SYN. closet, W.C., loo. water-closet