1, The full form of no is Norwegian language. It’s used on Regional ,Language Codes in Norway

Norwegian (Norwegian: norsk) is a North Germanic language spoken mainly in Norway, where it is an official language. Along with Swedish and Danish, Norwegian forms a dialect continuum of more or less mutually intelligible local and regional varieties; some Norwegian and Swedish dialects, in particular, are very close. These Scandinavian languages, together with Faroese and Icelandic as well as some extinct languages, constitute the North Germanic languages. Faroese and Icelandic are not mutually intelligible with Norwegian in their spoken form because continental Scandinavian has diverged from them. While the two Germanic languages with the greatest numbers of speakers, English and German, have close similarities with Norwegian, neither is mutually intelligible with it. Norwegian is a descendant of Old Norse, the common language of the Germanic peoples living in Scandinavia during the Viking Era.

Norwegian is a North Germanic language with around 5 million speakers in mainly in Norway. There are also some speakers of Norwegian in Denmark, Sweden, Germany, the UK, Spain, Canada and the USA.

Early Norwegian literature, mainly poetry and historical prose, was written in West Norse and flourished between the 9th and the 14th centuries. After that Norway came under Swedish and then Danish rule. Norwegian continued to be spoken but Danish was used for officials purposes, as a literary language and in higher education.

2, The full form of no is Norway (TLD). It’s used on Computing ,Internet in Norway

Norway (Bokmål: Norge; Nynorsk: Noreg; Northern Sami: Norga; Lule Sami: Vuodna; Southern Sami: Nöörje), officially the Kingdom of Norway, is a Nordic country in Northern Europe whose mainland territory comprises the western and northernmost portion of the Scandinavian Peninsula; Mainland Norway and the remote island of Jan Mayen as well as the archipelago of Svalbard form Metropolitan Norway.