1. simile: "Moon dance mournfully over the water" compares the movement of the moon to a dance. 2. personification: "Moon dance mournfully over the water" personifies the moon by giving it the human emotion of mourning. 3. irony: There is no clear example of irony in this sentence. Irony typically involves a situation where the outcome is different from what is expected, often in a humorous or unexpected way.