Définitions
1.NounThe capacity to live and develop.
2.NounEnergy or vigour."youthful vitality; full of vitality; economic vitality; The city’s cultural vitality impressed the visitors.; He maintained his vitality well into old age."
3.NounThat which distinguishes living from nonliving things; life, animateness.
4.Noun↑ Jespersen, Otto (1909), A Modern English Grammar on Historical Principles (Sammlung germanischer Elementar- und Handbücher; 9), volume I: Sounds and Spellings, London: George Allen & Unwin, published 1961, § 4.86, page 145.