boom

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boom1 / boōm/ • n. a loud, deep, resonant sound: the deep boom of the bass drum. ∎  the characteristic resonant call of the bittern. • v. [intr.] make a loud, deep, resonant sound: thunder boomed in the sky. DERIVATIVES: boom·y adj. boom2 • n. a period of great prosperity or rapid economic growth: a boom in precious metal mining [as adj.] a boom economy. • v. [intr.] undergo a period of great prosperity or rapid economic growth: business is booming. boom3 • n. a long pole or rod, in particular: ∎  a spar to which a the foot of a vessel's sail is attached. ∎  [often as adj.] a movable arm over a television or movie set, carrying a microphone or camera: a boom mike. ∎  a long beam extending upward at an angle from the mast of a derrick, for guiding or supporting objects being moved or suspended. ∎  a floating beam used to contain oil spills or to form a barrier across the mouth of a harbor or river. ∎  a retractable tube for inflight transferral of fuel from a tanker airplane to another airplane.

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boomabloom, assume, backroom, bloom, Blum, boom, broom, brume, combe, consume, doom, entomb, exhume, flume, foredoom, fume, gloom, groom, Hume, illume, inhume, Khartoum, khoum, loom, neume, perfume, plume, presume, resume, rheum, room, spume, subsume, tomb, vroom, whom, womb, zoom •catacomb • heirloom • broadloom •taproom • guardroom • staffroom •darkroom • classroom • bathroom •bedroom, headroom •legroom • restroom •dayroom, playroom •saleroom • stateroom • salesroom •tearoom • green room • sickroom •anteroom • bridegroom • stockroom •strongroom • box room • washroom •storeroom • boardroom • ballroom •courtroom • houseroom • showroom •cloakroom • elbow room •poolroom, schoolroom •newsroom •gunroom, sunroom •mushroom • common room •workroom • hecatomb • vacuum •legume • volume • costume •Leverhulme

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boom1 give out a deep humming note XV; sail with great speed XVII. ult. imit. (Cf. BOMB); Cf. Du. bommen.
Hence boom sb. XVI.

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boom2 (naut.) long spar; floating timber barrier. XVI (Sc. boume). — Du. boom tree, pole, BEAM.

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boom3 (orig. U.S.) sudden activity in commerce. XIX. prob. application of BOOM1.
Also as vb. XIX.

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boom An input device consisting of a long shaft whose end can be moved in three dimensions, so allowing three-dimensional input.

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Boom

a fixed line of floating timber, 1702.

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