Boom Americanism

Boom (Americanism), an Americanism used both as a noun and a verb (active or neuter), to signify a rapid rise in prosperity or in value, or in the attention attracted by some subject. Thus a rapidly rising town in the western United States is said to be "booming." A movement to run General Grant for the Presidency of the United States for a third term of office was concisely called "the Grant Boom." The word is said to be used in Western America to describe the rapid rising of a river, or it may be meant to suggest the noise and rush accompanying the discharge of a cannon ball.