Vocab InfoUnclassified Noun硬(こう)hardnessDetailsExamples硬hardnessDetailsExamplesDictionary DefinitionNoun1. hardnessAll Forms硬 【こう】DetailsAudioPlayFrequencyNovels Top 39,100ExamplesThere 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