"vitality" in the noun sense
1. vitality, verve
an energetic style
2. energy, vim, vitality
a healthy capacity for vigorous activity
"jogging works off my excess energy"
"he seemed full of vim and vigor"
3. life force, vital force, vitality, elan vital
biology) a hypothetical force (not physical or chemical) once thought by Henri Bergson to cause the evolution and development of organisms
4. animation, vitality
the property of being able to survive and grow
"the vitality of a seed"
Source: WordNet® (An amazing lexical database of English)
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