investment /ɪnˈvɛstmənt/ noun5 •money used to buy something that is expected to grow in value or bring in more moneyAn investment in ink, paper, and steel pens. — 1850 •The act of investing, or state of being invested.Giving your children a good education is a wise long-term investment. •The act of surrounding, blocking up, or besieging by an armed force, or the state of being so surrounded. •A mixture of silica sand and plaster which, by surrounding a wax pattern, creates a negative mold of the form used for casting, among other metals, bronze. •(no longer used) A vestment.Whose white investments figure innocence. — 1591 formsinvestments