国こく籍せき留りゅう保ほMeaningsNoun1. reservation of Japanese nationality (procedure used with children born outside Japan)Kanji used国country籍registry留hold in place保preserveComposed of国こく籍せきnationality; citizenship; nationality (ship, airplane, etc.); registration; flagNoun留りゅう保ほreserving; withholdingNoun