As someone living in the US, I've heard the term "Kindergarten" used quite frequently. However someone from the UK was mentioning to me that the term is really not used that much in British English. Looking at the Wikipedia article on Kindergarten it states:
In British English, nursery or playgroup is the usual term for preschool education, and kindergarten is rarely used, except in the context of special approaches to education, such as Steiner-Waldorf education (the educational philosophy of which was founded by Rudolf Steiner).
I'd like to know why this variation in adoption exists.