'"toilet" (as I may have noted years ago) is that in the US has come to mean, specifically and unambiguously, the porcelain fixture used for defecation, etc., and not the room.'
.,,.
Originally, of course, it meant neither. The original meaning was the *process* of washing, arranging hair, (for a woman) making up, &c, prior to dressing and presenting oneself to company; either in the morning on rising, or later in the day before a meal or going out.

~M~