Definition of "vital"
adjective:
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Relating to, or characteristic of life.
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Necessary to the continuation of life; being the seat of life; being that on which life depends.
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Invigorating or life-giving.
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Necessary to continued existence.
from Wiktionary, Creative Commons Attribution/Share-Alike License -
Relating to the recording of life events.
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Very important.
from Wiktionary, Creative Commons Attribution/Share-Alike License
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