Final answer:
A boom is the high point of economic activity prior to a downturn. It is characterized by a particularly strong and protracted expansion in the economy.
Step-by-step explanation:
A boom is the high point of economic activity prior to a downturn. It indicates a particularly strong and protracted expansion in the economy. This period is characterized by increased production, employment, and overall economic growth. An example of a boom is the economic expansion that took place in the United States during the 1990s, known as the dot-com boom, where there was a rapid growth in the technology sector.