Given the task definition and input, reply with output. Generate a topic word for the given sentence. A topic word is usually the name of a person, place, animal, concept or object the sentence is focusing on.

hurricane ike was the third most damaging storm in united states (u.s.) history, having caused about $24 billion dollars in damage, it was only behind hurricane andrew in 1992 and hurricane katrina in 2005 as the most damaging in the u.s..
hurricane ike