Legal Definition of Invest: To place money in a business venture in the hope of making more money; the giving of money in exchange for securities; to use money to make more money | Learn why investing is essential for business owners! This comprehensive guide explains the legal definition of invest and provides examples of different types of investments, including stocks, real estate, mutual funds, and startups. Discover the benefits of investing, from generating additional income to securing a financial future during retirement. With practical tips on diversifying your portfolio and expanding your business, this guide will help you make informed financial decisions and achieve long-term success