Which term means to increase in size or amount?

• A. Expand
• B. Extension
• C. External
• D. Fatigue

Answer: (A)

The idea being tested is how we describe something growing larger or becoming greater in amount. The best term is expand, which is a verb meaning to increase in size, scope, or quantity. You can talk about expanding a business, expanding a map to cover more area, or expanding a gas in a container as volume grows. Extension is related but usually refers to something being lengthened or an added part, not the general action of growing. External means outside, and fatigue means tiredness, so they don’t fit the meaning. So expand is the accurate choice.