Vocab InfoA13 Noun大公国(たいこうこく)grand duchyDetailsExamples大公国grand duchyDetailsExamplesDictionary DefinitionNoun1. grand duchyAll Forms大公国 【たいこうこく】DetailsPitch AccentたいこうこくExamplesThere are no sentences available for this contentHold tight, context sentences are coming soon!Self-Study SentencesStudy your own way!Add sentences and study them alongside Bunpro sentences.Try Bunpro