A more thorough explanation:

Prohibition refers to the act of prohibiting or forbidding something. In legal terms, it can refer to a writ of prohibition, which is a court order that prevents a lower court from taking a certain action.

However, in the United States, prohibition is often associated with the time period when the sale and transportation of alcohol was illegal. This began in the mid-19th century when groups like the Woman’s Christian Temperance Union pushed for the prohibition of alcohol at the state and federal level. Their efforts led to the 18th Amendment to the Constitution, which banned the sale and transportation of alcohol in the United States, effective 1919.

Prohibition led to the rise of organized crime involved in bootlegging alcohol, and shortly after its passage, it became widely unpopular. Thus, in 1933, the 21st Amendment to the Constitution repealed the 18th Amendment, making the sale and transportation of alcohol in the United States legal once more. The 18th Amendment is the only Amendment in the history of the Constitution to be repealed by subsequent Amendment.

For example, during the time of prohibition, people would often go to speakeasies, which were secret bars that sold illegal alcohol. This illustrates how prohibition led to the rise of organized crime and the creation of illegal markets for alcohol.