Lifeblood (noun)

The essential or vital element that keeps something alive or active.

Origin:

Compound word from "life" and "blood".

Examples:

1. The company's success was the lifeblood of the community.
2. Money is the lifeblood of the business.
3. New customers are the lifeblood of the company.
4. The lifeblood of the organization is its people.
5. Innovation is the lifeblood of progress.