Definify.com
Webster 1913 Edition
Boom
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
(boōm)
, Verb.
T.
(Naut.)
To extend, or push, with a boom or pole;
as, to
. boom
out a sail; to boom
off a boatBoom
(boōm)
, Verb.
I.
[
imp. & p. p.
Boomed
, p. pr. & vb. n.
Booming
.] 1.
To cry with a hollow note; to make a hollow sound, as the bittern, and some insects.
At eve the beetle
Athwart the thicket lone.
boometh
Athwart the thicket lone.
Tennyson.
2.
To make a hollow sound, as of waves or cannon.
Alarm guns
booming
through the night air. W. Irving.
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
,Noun.
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
,Verb.
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.]
Webster 1828 Edition
Boom
BOOM
,Noun.
1.
A strong iron chain, fastened to spars, and extended across a river, or the mouth of a harbor, to prevent an enemy's ships from passing.2.
A pole set up as a mark to direct seamen how to keep the channel, in shallow water.