Grubstake and Ruling class

Grubstake noun - Funds advanced to a prospector or to someone starting a business in return for a share of the profits.

Ruling class and grubstake are semantically related. In some cases you can use "Ruling class" instead a noun "Grubstake".

Ruling class noun - The class of people exerting power or authority.

Grubstake and ruling class are semantically related. Sometimes you can use "Grubstake" instead a noun phrase "Ruling class".