"vigour" in the noun sense
1. energy, vigor, vigour, zip
"he plays tennis with great energy"
"he's full of zip"
2. vigor, vigour, dynamism, heartiness
active strength of body or mind
3. energy, muscularity, vigor, vigour, vim
an imaginative lively style (especially style of writing
"his writing conveys great energy"
"a remarkable muscularity of style"
Source: WordNet® (An amazing lexical database of English)
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