UK meaning in Messaging ?

Answer: What is U Know mean?

Willow (stylized in all caps) is the eponymous and third studio album by American singer Willow. It was released on July 19, 2019, through MSFTS Music and Roc Nation. The album includes a feature from her brother Jaden, and is the follow up to her last project The 1st (2017). It was written and produced entirely by Willow.

reference

Full Form	Category
University Karlsruhe	Academic & Science
University of Kentucky	Academic & Science
University of Kent	Academic & Science
Universiteit van Kaapstad	Academic & Science
University of Karachi	Academic & Science
Univerzita Komenského	Academic & Science
Univerzita Karlova	Academic & Science
Université Kongo	Academic & Science
Universidad Kennedy	Academic & Science
University of Kara	Academic & Science
Union Carbide Corporation (delisted)	Business
United Kollectives	Business
Usher's Keep	Community
United Kingdom (TLD)	Computing
United Kueers	General
Upper Krust	General
United Kingdomland	General
The Underworld Kingdom	General
United Kingdom (Great Britain)	General
Ugly Kids	General
Universal Killer	General
Uttara Karnataka	General
United King	General
Birlesik Krallik, Ingiltere (United Kingdom)	International
Undercover Killers	Internet
U Know	Messaging
Universiteitskrant	News & Entertainment
Ukrainian	Regional
Vistara	Transport & Travel
Sites In The United Kingdom	Web Technology