lifeblood
Noun
Meaning
The blood necessary to life; vital blood.
Fig.: That which gives strength and energy.
Source: Webster's dictionarySynonyms
Antonyms
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Examples
Let me remind you that credit is the lifeblood of business, the lifeblood of prices and jobs.
Poetry is the lifeblood of rebellion, revolution, and the raising of consciousness.
If co-operation, is thus the lifeblood of science and technology, it is similarly vital to society as a whole.
A good book is the precious lifeblood of a master spirit.
Money is the lifeblood of startups. You stay in business until you run out of it.
Consumer debt is the lifeblood of our economy. All modern nation states are built on deficit spending. Debt has come to be the central issue of international politics. But nobody seems to know exactly what it is, or how to think about it.