lifeblood
noun/ˈlaɪfblʌd/
/ˈlaɪfblʌd/
[uncountable]- lifeblood (of something) the thing that keeps something strong and healthy and is necessary for successful development
- Tourism is the lifeblood of the city.
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- (literary) a person’s blood, when it is thought of as the thing that is necessary for life
- The wound was draining the lifeblood from him.
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lifeblood