Vocab InfoA19 Expression何(なん)だこれはwhat on Earth is this?DetailsExamples何だこれはwhat on Earth is this?DetailsExamplesDictionary DefinitionExpression1. what on Earth is this?Colloquial, Usually written using kana alone, See Also:何だこりゃAll Forms何だこれは 【なんだこれは】DetailsAudioPlayExamplesThere 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