men's room

Originally a clipped form of gentlemen's room, originally a separate waiting room for men in public buildings such as railway stations but by the appearance of men's room also used as a euphemism for men's lavatories.

men's room (plural men's rooms)

1. A lavatory intended for use by men, often including urinals in addition to toilets.
   • 1929, Daniel Nathan as "Ellery Queen", The Roman Hat Mystery, Ch. iii, p. 31:

     Search the lounge downstairs. The , the ladies' room.

2. Other rooms intended for use by men, as waiting rooms, dressing rooms, locker rooms, etc.

• See Thesaurus:bathroom

• women's room, ladies' room

• men's

• "man, n.¹ (and int.)" in the Oxford English Dictionary (2000), Oxford: Oxford University Press.

• men's room on Wikipedia.Wikipedia

• monomers