投資は英語で
investment

英語の定義

投資
1. n. investment
2. v. invest, speculate
株にお金を投資する - invest money in stock

investment
1. n. The act of investing, or state of being invested.
2. n. (finance) A placement of capital in expectation of deriving income or profit from its use or appreciation.
3. n. (obsolete) A vestment.
4. n. (military) The act of surrounding, blocking up, or besieging by an armed force, or the state of being so surrounded.
5. n. 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.