The word is used in "Svea rike", with the current spelling "Sverige", the name of Sweden in Swedish. It is based on an analogy to Svealand and to Mother Svea, a symbolic representation of the nation. It is also present in the names of instituions such as the Riksdag, Riksbank, Riksgäld, Riksåklagaren, Rikspolisstyrelsen, Riksteatern, Riksdaler, etc.
The Lord's Prayer uses the words in the Swedish version "tillkomme ditt rike" (thy kingdom come).
Etymology
See also: Realm of Sweden