definition of
vigor

[1] #1 vigor n. [energy, vigour, zip] forceful exertion; "he plays tennis with great energy"; "he's full of zip". wn

[2] #2 vigor n. [vigour, dynamism, heartiness] active strength of body or mind. wn

[3] #3 vigor n. [energy, muscularity, vigour, vim] an imaginative lively style (especially style of writing); "his writing conveys great energy"; "a remarkable muscularity of style". wn