vigor

Noun

• an imaginative lively style (especially style of writing)
  • his writing conveys great energy
    
  • a remarkable muscularity of style
    

• active strength of body or mind

• forceful exertion
  • he plays tennis with great energy
    
  • he's full of zip
    

Related words

• Synonyms: 
  energy , muscularity , vigour , vim , dynamism , heartiness , zip