rhymes. 171 Firestorm Firestorm Definition: A firestorm is a conflagration which attains such intensity that it creates and sustains its own wind system.. Wikipedia suggests Firestorm . Firestorm contains 9 letters and has 171 connections / rhymes. 313 Flatworm Flatworm Definition: The flatworms, known in scientific literature as Platyhelminthes or Plathelminthes