vigor
(noun)
noun
1. forceful exertion
Similar word(s): energy, vigour, zip
Definition categories: attribute, force, forcefulness, strength
2. active strength of body or mind
Similar word(s): dynamism, heartiness, vigour
Definition categories: attribute, strength
3. an imaginative lively style (especially style of writing)
Similar word(s): energy, muscularity, vigour, vim
Definition categories: attribute, life, liveliness, spirit, sprightliness