From Longman Dictionary of Contemporary EnglishXmasX‧mas /ˈkrɪsməs, ˈeksməs/ noun [countable, uncountable] informalRRC a word that means Christmas, often written on signs or cards
Examples from the Corpus
Xmas• These days it's Left-wing councillors and trendy heads who try to ban Xmas.• This year's best Xmas song?• An original Birthday, Anniversary or Xmas gift.• Thanks to and who organised our Xmas dinner.• Look out for the Xmas merchandising: Porky-Man cards.• After wiring up the Xmas tree lights and programming the computer, even managed the washing up!• I have to kick myself to think that it was Xmas only 3 weeks ago. 