3. (noun)boom, bonanza, gold rush, gravy, godsend, manna from heaven, windfall, bunce a sudden happening that brings goodfortune (as a sudden opportunity to make money) "the demand for testing has created a boom for those unregulated laboratories where boxes of specimen jars are processed like an assembly line"
1. (noun)boom an increase in value, number, or popularity an economic boom; a boom in alternative therapies
2. boom baby boom a time when people havemore babies
3. boom a loud, low sound a boom of thunder; Business is booming.; loud music booming all night
Definition of 'Boom'
Webster Dictionary
1. (noun)Boom a long pole or spar, run out for the purpose of extending the bottom of a particular sail; as, the jib boom, the studding-sail boom, etc
2. (noun)Boom a long spar or beam, projecting from the mast of a derrick, from the outer end of which the body to be lifted is suspended
3. (noun)Boom a pole with a conspicuous top, set up to mark the channel in a river or harbor
4. (noun)Boom a strong chain cable, or line of spars bound together, extended across a river or the mouth of a harbor, to obstruct navigation or passage
5. (noun)Boom a line of connected floating timbers stretched across a river, or inclosing an area of water, to keep saw logs, etc., from floating away
6. (noun)Boom a hollow roar, as of waves or cannon; also, the hollow cry of the bittern; a booming
7. (noun)Boom a strong and extensive advance, with more or less noisy excitement; -- applied colloquially or humorously to market prices, the demand for stocks or commodities and to political chances of aspirants to office; as, a boom in the stock market; a boom in coffee
8. (verb)Boom to extend, or push, with a boom or pole; as, to boom out a sail; to boom off a boat
9. (verb)Boom to cry with a hollow note; to make a hollow sound, as the bittern, and some insects