Vocab InfoUnclassified NounO(オー)O, oDetailsExamplesOO, oDetailsExamplesDictionary DefinitionNoun1. O, oAll FormsO 【オー】、o 【オー】DetailsAudioPlayFrequencyNovels Top 196,800ExamplesThere 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