Noun fireball has 4 senses
  1. bolide, fireball - an especially luminous meteor (sometimes exploding)
    --1 is a kind of meteor, shooting star
  2. powerhouse, human dynamo, ball of fire, fireball - a highly energetic and indefatigable person
    --2 is a kind of actor, doer, worker
    --2 has particulars: self-starter
  3. fireball - a ball of fire (such as the sun or a ball-shaped discharge of lightning)
    --3 is a kind of
    ball, globe, orb
  4. fireball - the luminous center of a nuclear explosion
    --4 is a kind of
    ball, globe, orb
    --4 is a part of nuclear explosion, atomic explosion
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