Definition of "WC"

WC

/ˌdʌbəlju ˈsiː/

noun
plural WCs
1. (UK) Initialism of water closet: a lavatory; a toilet.
  Quotations
  In the summer of 1877, a gentleman with whom I was well acquainted, took lodgings in Preston-street, Brighton. The morning after his arrival, he found in the W.C. some leaves of an old black-letter book.
  1880, William Blades, The Enemies of Books, page 54
2. (proofreading) Initialism of word choice.
3. (sports) Abbreviation of world championship.
4. (sports) Abbreviation of world cup.