An ideology that stresses the importance of investment for the health of the economy.

A person who invests money in order to make a profit.

plural of investor

(business) An investor in a business who by agreement or otherwise can not take an active role in the management of the business.

(business) An investor to a start-up, especially one who invests very early or during the company's initial forming.

a person or a group purchasing and using an equity stake in a publicly traded corporation to put public pressure on its management, with the goal of effecting a change

plural of angel investor

plural of activist investor

plural of passive investor