| 释义 |
WordReference Random House Learner's Dictionary of American English © 2024boom1 /bum/USA pronunciation v. - to make a deep, echoing sound: [no object]The cannons boomed.[~ + object]The cannons boomed a deafening roar.
- to announce or say with a booming sound or voice: [used with quotations]"Back inside!'' he boomed as the tornado struck.[~ + out + object]The guns boomed out an answer to the attack.[no object* ~ + (out)]His voice boomed (out) from his office.
- [no object] to progress or increase quickly and strongly: Business is booming.
n. [countable] - a deep, long, echoing sound:the booms from the battleship's guns.
- Businessa rapid increase in sales, worth, etc.: a housing boom.
- Businessa period of rapid economic growth:the boom years of prosperity.
boom•ing, adj.: a deep, booming voice.boom2 /bum/USA pronunciation n. [countable]- Naval Termsa pole sticking out from a ship's mast and used to extend sails, handle cargo, etc.
- Naval Termsa chain, cable, or anything that serves to block the passage of ships.
- Show Business, Cinema(on a motion-picture or television stage) a long pole for holding and moving a microphone or camera.
Idioms- Idioms lower the boom, to act strongly to punish wrongdoing:finally lowered the boom on the drug dealers.
WordReference Random House Unabridged Dictionary of American English © 2024boom1 (bo̅o̅m),USA pronunciation v.i. - to make a deep, prolonged, resonant sound.
- to move with a resounding rush or great impetus.
- to progress, grow, or flourish vigorously, as a business or a city:Her business is booming since she enlarged the store.
v.t. - to give forth with a booming sound (often fol. by out):The clock boomed out nine.
- to boost;
campaign for vigorously:His followers are booming George for mayor.
n. - a deep, prolonged, resonant sound.
- the resonant cry of a bird or animal.
- a buzzing, humming, or droning, as of a bee or beetle.
- a rapid increase in price, development, numbers, etc.:a boom in housing construction.
- a period of rapid economic growth, prosperity, high wages and prices, and relatively full employment.
- a rise in popularity, as of a political candidate.
adj. - caused by or characteristic of a boom:boom prices.
- 1400–50; 1910–15 for def. 10; late Middle English bombon, bummyn to buzz; cognate with Dutch bommen, German bummen, origin, originally imitative
- 3.See corresponding entry in Unabridged prosper, thrive, develop.
boom2 (bo̅o̅m),USA pronunciation n. - Nautical, Naval Termsany of various more or less horizontal spars or poles for extending the feet of sails, esp. fore-and-aft sails, for handling cargo, suspending mooring lines alongside a vessel, pushing a vessel away from wharves, etc.
- Aeronautics
- an outrigger used on certain aircraft for connecting the tail surfaces to the fuselage.
- a maneuverable and retractable pipe on a tanker aircraft for refueling another aircraft in flight.
- chord1 (def. 4).
- Naval Termsa chain, cable, series of connected floating timbers, or the like, serving to obstruct navigation, confine floating timber, etc.
- Naval Termsthe area thus shut off.
- Mechanical Engineering[Mach.]a spar or beam projecting from the mast of a derrick for supporting or guiding the weights to be lifted.
- Show Business(on a motion-picture or television stage) a spar or beam on a mobile crane for holding or manipulating a microphone or camera.
- Idioms lower the boom, to take decisive punitive action:The government has lowered the boom on tax evaders.
v.t. - Naval Termsto extend or position, as a sail (usually fol. by out or off ).
- to manipulate (an object) by or as by means of a crane or derrick.
v.i. - Naval Termsto sail at full speed.
- Dutch: tree, pole, beam
- 1635–45
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