investment

American  

[in-vest-muhnt] / ɪnˈvɛst mənt /

noun

1. the investing of money or capital in order to gain profitable returns, as interest, income, or appreciation in value.

2. a particular instance or mode of investing.

3. a thing invested in, as a business, a quantity of shares of stock, etc.

4. something that is invested; sum invested.

5. the act or fact of investing or state of being invested, as with a garment.

6. a devoting, using, or giving of time, talent, emotional energy, etc., as for a purpose or to achieve something.

   His investment in the project included more time than he cared to remember.

7. Biology. any covering, coating, outer layer, or integument, as of an animal or vegetable.

8. the act of investing with a quality, attribute, etc.

9. investiture with an office, dignity, or right.

10. a siege or blockade; the surrounding of a place with military forces or works, as in besieging.

11. Also called investment compound.  Metallurgy. a refractory material applied in a plastic state to a pattern to make a mold.

12. Archaic. a garment or vestment.

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investment British  

/ ɪnˈvɛstmənt /

noun

1. 1. the act of investing money

   2. the amount invested

   3. an enterprise, asset, etc, in which money is or can be invested

2. 1. the act of investing effort, resources, etc

   2. the amount invested

3. economics the amount by which the stock of capital (plant, machinery, materials, etc) in an enterprise or economy changes

4. biology the outer layer or covering of an organ, part, or organism

5. a less common word for investiture

6. the act of investing or state of being invested, as with an official robe, a specific quality, etc

7. rare the act of besieging with military forces, works, etc

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investment Cultural  

1. The purchase of property with the expectation that its value will increase over time.

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Other Word Forms

• nonreinvestment noun
• overinvestment noun
• preinvestment noun
• proinvestment adjective
• reinvestment noun

Etymology

Origin of investment

First recorded in 1590–1600 investment for def. 12; 1605–15 investment for def. 1; invest + -ment

Explanation

You are making an investment when you put money into a business with the hopes that the business will grow and bring you a profit. Many consider a college education to be one of the best investments you can make. Besides money, you can put time, effort or emotional support into something and also call it an investment. Volunteering in an organization requires an investment of time and energy. You may hear someone say, "We must make an investment in the future of our children," when he or she is pleading for fiscal responsibility, education, environmental protection or some other cause that will affect the success of future generations.

Example Sentences

Demand destruction is among the many deleterious consequences of oil near $100 a barrel, said Pavel Molchanov, investment strategy analyst at Raymond James.

From MarketWatch • Apr. 14, 2026

Sun’s $30 million investment saved World Liberty’s initial fundraising, but the company now accuses him of “baseless allegations.”

From The Wall Street Journal • Apr. 14, 2026

That highlighted serious gaps in the UK's armed forces - which ministers said would be addressed in its much-delayed defence investment plan.

From BBC • Apr. 14, 2026

Apple’s investment consisted of $1.1 billion in funding for new satellites and paying $400 million for a 20% interest in the entity that will operate Globalstar’s new constellation.

From Barron's • Apr. 14, 2026

Having Apollinaire give investment advice may sound like a horrible idea, and it was.

From "The Mona Lisa Vanishes" by Nicholas Day

Related Words

• asset
• contribution
• expenditure
• expense
• finance
• financing
• grant
• loan
• money
• property
• purchase
• stake
• transaction
• venture