1. A highly energetic and indefatigable person
   - powerhouse, human dynamo, fireball 
2. Someone whose career progresses rapidly
   - go-getter, whizz-kid, whiz-kid

Derived forms: balls of fire

Type of: actor, doer, worker

Encyclopedia: Ball of fire

• loftily
• loftiness
• lofting iron
• genus Aframomum
• genus Afrocarpus
• genus Afropavo
• genus Agalinis
• genus Agama
• genus Agapanthus
• genus Agapornis
• genus Agaricus
• genus Agastache
• genus Agathis
• genus Agave
• genus Agdestis
• genus Agelaius
• genus Ageratina
• genus Ageratum
• genus Agkistrodon
• genus Aglaomorpha
• genus Aglaonema
• genus Agonus
• genus Agrimonia
• genus Agriocharis
• genus Agrobacterium