U.K. (acronym) Type: noun, acronym Pronunciation: /u-k/ Also spelled: UK Also known as: The UK, The U.K. What does U.K. mean and stand for? United Kingdom. U.K. is short for United Kingdom. Example sentence: “The U.K. is a vibe.” U.K. in songs: “U.K. niggas up in the pubs, they watching them soccer games” – Danny […]