Definitions for: Boom

[n] any of various more-or-less horizontal spars or poles used to extend the foot of a sail or for handling cargo or in mooring
[n] a pole carrying an overhead microphone projected over a film or tv set
[n] a deep prolonged loud noise
[n] a sudden happening that brings very good fortune
[n] a state of economic prosperity
[v] grow stronger; "The economy was booming"
[v] hit hard; "He smashed a 3-run homer"
[v] make a deep hollow sound; "Her voice booms out the words of the song"
[v] make a resonant sound; as of artillery; "His deep voice boomed through the hall."
[v] be the case that thunder is being heard; "Whenever it thunders, my dog crawls under the bed"

Webster (1913) Definition: Boom (b[=oo]m), n. [D. boom tree, pole, beam, bar. See
1. (Naut.) 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. (Mech.) 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. A pole with a conspicuous top, set up to mark the channel
in a river or harbor. [Obs.]

4. (Mil. & Naval) 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. (Lumbering) A line of connected floating timbers stretched
across a river, or inclosing an area of water, to keep saw
logs, etc., from floating away.

Boom iron, one of the iron rings on the yards through which
the studding-sail booms traverse.

The booms, that space on the upper deck of a ship between
the foremast and mainmast, where the boats, spare spars,
etc., are stowed. --Totten.

Boom (b[=oo]m), v. t. (Naut.)
To extend, or push, with a boom or pole; as, to boom out a
sail; to boom off a boat.

Boom (b[=oo]m), v. i. [imp. & p. p. Boomed, p. pr. &
vb. n. Booming.] [Of imitative origin; cf. OE. bommen to
hum, D. bommen to drum, sound as an empty barrel, also W.
bwmp a hollow sound; aderyn y bwmp, the bird of the hollow
sound, i. e., the bittern. Cf. Bum, Bump, v. i., Bomb,
v. i.]
1. To cry with a hollow note; to make a hollow sound, as the
bittern, and some insects.

At eve the beetle boometh Athwart the thicket lone.

2. To make a hollow sound, as of waves or cannon.

Alarm guns booming through the night air. --W.

3. To rush with violence and noise, as a ship under a press
of sail, before a free wind.

She comes booming down before it. --Totten.

4. To have a rapid growth in market value or in popular
favor; to go on rushingly.

Boom, n.
1. A hollow roar, as of waves or cannon; also, the hollow cry
of the bittern; a booming.

2. 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. [Colloq. U. S.]

Boom, v. t.
To cause to advance rapidly in price; as, to boom railroad or
mining shares; to create a ``boom'' for; as to boom Mr. C.
for senator. [Colloq. U. S.]

Synonyms: blast, bonanza, boom out, din, expand, flourish, get ahead, manna from heaven, microphone boom, nail, prosper, roar, roaring, smash, thrive, thunder, thunder

See Also: go, grow, happening, hit, luxuriate, natural event, noise, occurrence, pole, prosperity, revive, sailing ship, sailing vessel, sound, spar, storm

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