Wealth is assets that earn while you sleep.

Wealth is the thing you want. Wealth is
the factory, the robots, cranking out things. Wealth is the computer program that’s running at night, serving other customers. Wealth is even money in the bank that is being reinvested into other assets, and into other businesses. Even a house can be a form of wealth, because you can rent it out, although that’s probably a lower productivity use of land than some commercial enterprise.
So, my definition of wealth is much more businesses and assets that can earn while you sleep.