Natives of each Scandinavian language can read and understand the others to a reasonable extent. These languages are also related, but more distantly, to English, German, and Dutch. The populations of these countries are usually fluent in one or more foreign language and the same person or publication frequently uses one of these languages in addition to one or more others.
Scandinavian languages allow long compound words as also found in German, which challenge people and NLP systems with correspondingly large vocabularies. The use of a suffix to indicate what many other languages indicate with a definite article ("the") is a quirk that surprises many non-natives when they begin to learn a Scandinavian language. The great similarity between Norwegian, Swedish, and Danish is a considerable challenge for systems that perform language detection and are required to decide which Scandinavian language a short text is written in.
While limited in raw number of speakers, the Scandinavian languages are relatively more important given the affluence of their nations. The Scandinavian languages are crucial to our goal at Gistology of serving the world's most important languages.