Private investment refers to an individual or a company's direct investment in assets, such as property, stocks, bonds, and other securities. This type of investment is made with personal funds or capital that is not borrowed, and it does not involve any public funding or support. Private investments are typically made to generate income, increase wealth, or finance growth in a business. They can also be used as a means of diversifying an individual's or company's portfolio by spreading the risk across different types of assets.