What is the scandanivian main language?

There is no single "Scandinavian main language". Scandinavia is a region that includes several countries, each with their own official language:

* Denmark: Danish

* Sweden: Swedish

* Norway: Norwegian (which has two main forms, Bokmål and Nynorsk)

* Finland: Finnish (not a Scandinavian language, but part of the Finno-Ugric language family)

* Iceland: Icelandic

While these languages are closely related and speakers can often understand each other to some degree, they are distinct languages with their own unique features.