The language used in The Big Wave is fairly casual and informal, though the sentences are constructed quite properly for the most part. This style of writing is quite appropriate for children, the target audience. It is also useful in focusing on the lessons that Kino's father teaches Kino about life, as well as in conveying Jiya's acceptance of his grief after the deaths of his family. The language aids comprehension of the short novel because it makes it easy to understand and accessible to young children. The language and messages in this book characterize Japanese culture.