Definition: "Dale of Norway" refers to a particular area in Oslo, Norway, where the majority of the population speaks Norwegian as their primary language. The term "Dale" comes from the Norwegian for "lake". This part of Oslo refers to the lake that is located on one side of the city and which serves as the main source of water supply and irrigation for the rest of the city. The area around the lake was historically a region where many people spoke Norwegian. However, in recent decades, there has been a decline in this language use, leading to the emergence of "Dale Of Norway", which is now commonly spoken by the majority of the population in Oslo. This term is often used colloquially or as a reference for any area that shares the same linguistic background with Oslo. The term "Dale" is also sometimes used as a metaphorical name for someone who has no formal training or education, but who still speaks Norwegian fluently and communicates effectively.