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90s Slang You Should Know


[beem] /bim/
any of various relatively long pieces of metal, wood, stone, etc., manufactured or shaped especially for use as rigid members or parts of structures or machines.
Building Trades. a horizontal bearing member, as a joist or lintel.
Engineering. a rigid member or structure supported at each end, subject to bending stresses from a direction perpendicular to its length.
  1. a horizontal structural member, usually transverse, for supporting the decks and flats of a vessel.
  2. the extreme width of a vessel.
  3. the shank of an anchor.
Aeronautics. the direction perpendicular to the plane of symmetry of an aircraft and outward from the side.
the widest part.
Slang. the measure across both hips or buttocks:
broad in the beam.
  1. walking beam.
  2. (in a loom) a roller or cylinder on which the warp is wound before weaving.
  3. a similar cylinder on which cloth is wound as it is woven.
the crossbar of a balance, from the ends of which the scales or pans are suspended.
a ray of light:
The sun shed its beams upon the vineyard.
a group of nearly parallel rays.
Radio, Aeronautics. a signal transmitted along a narrow course, used to guide pilots through darkness, bad weather, etc.
Electronics. a narrow stream of electrons, as that emitted from the electron gun of a cathode ray tube.
the angle at which a microphone or loudspeaker functions best.
the cone-shaped range of effective use of a microphone or loudspeaker.
Citizens Band Radio Slang. beam antenna.
a gleam; suggestion:
a beam of hope.
a radiant smile.
the principal stem of the antler of a deer.
verb (used with object)
to emit in or as in beams or rays.
Radio. to transmit (a signal) in a particular direction.
Radio and Television. to direct (a program, commercial message, etc.) to a predetermined audience.
verb (used without object)
to emit beams, as of light.
to smile radiantly or happily.
beam in, Citizens Band Radio Slang. to be received under optimum conditions; be heard loud and clear:
They told me I was really beaming in.
fly the beam, Radio, Aeronautics. (of an aircraft) to be guided by a beam.
off the beam,
  1. not on the course indicated by a radio beam.
  2. Informal. wrong; incorrect:
    The pollsters were off the beam again for the last presidential election.
on the beam,
  1. on the course indicated by a radio beam, as an airplane.
  2. Nautical. at right angles to the keel.
  3. Informal. proceeding well; correct; exact:
    Their research is right on the beam and the results should be very valuable.
Origin of beam
before 900; Middle English beem, Old English bēam tree, post, ray of light; cognate with Old Frisian bām, Old Saxon bōm, Dutch boom, Old High German boum (German Baum), Gothic bagms, Old Norse bathmr tree; the identity of the consonant which has assimilated itself to the following m is unclear, as is the original root; perhaps Germanic *bagmaz < *bargmaz < Indo-European *bhorǵh-mos growth; see barrow2
Related forms
beamless, adjective
beamlike, adjective
outbeam, verb (used with object)
unbeamed, adjective
underbeam, noun
10. See gleam. 20. See shine1 . Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for beam
Contemporary Examples
Historical Examples
  • A beam, by the way, is a beam in Japan; anything under a foot thick is a stick.

    From Sea to Sea Rudyard Kipling
  • The struggle with the beast broke the beam to which he was chained.

    The Children of Odin Padraic Colum
  • Luckily for us, the wind was nearly aft, so that we did not feel its effects nearly so much as if it had been on our beam.

    A Boy's Voyage Round the World The Son of Samuel Smiles
  • Then she walked along the beam, and turned about to come down the ladders.

    Little Prudy Sophie May
  • It was as though the beam were a very fragile thing that might break should it brush even the smallest tree.

    The Spell of the White Sturgeon James Arthur Kjelgaard
British Dictionary definitions for beam


a long thick straight-sided piece of wood, metal, concrete, etc, esp one used as a horizontal structural member
any rigid member or structure that is loaded transversely
the breadth of a ship or boat taken at its widest part, usually amidships
a ray or column of light, as from a beacon
a broad smile
one of the two cylindrical rollers on a loom, one of which holds the warp threads before weaving, the other the finished work
the main stem of a deer's antler from which the smaller branches grow
the central shaft of a plough to which all the main parts are attached
a narrow unidirectional flow of electromagnetic radiation or particles: a beam of light, an electron beam
the horizontal centrally pivoted bar in a balance
(informal) the width of the hips (esp in the phrase broad in the beam)
a beam in one's eye, a fault or grave error greater in oneself than in another person
off beam, off the beam
  1. not following a radio beam to maintain a course
  2. (informal) wrong, mistaken, or irrelevant
on the beam
  1. following a radio beam to maintain a course
  2. (nautical) opposite the beam of a vessel; abeam
  3. (informal) correct, relevant, or appropriate
to send out or radiate (rays of light)
(transitive) to divert or aim (a radio signal or broadcast, light, etc) in a certain direction: to beam a programme to Tokyo
to pass (data, esp business card details, etc) from one hand-held computer to another by means of infrared beams
(intransitive) to smile broadly with pleasure or satisfaction
Derived Forms
beamed, adjective
beaming, adjective, noun
beamless, adjective
beamlike, adjective
beamy, adjective
Word Origin
Old English beam; related to Gothic bagms tree, Old High German boum tree
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for beam

Old English beam originally "living tree," but by late 10c. also "rafter, post, ship's timber," from Proto-Germanic *baumaz (cf. Old Norse baðmr, Old Frisian bam "tree, gallows, beam," Middle Dutch boom, Old High German boum, German Baum "tree," Gothic bagms), perhaps from PIE verb root *bheue- "to grow" (see be). The shift from *-au- to -ea- is regular in Old English.

Meaning "ray of light" developed in Old English, probably because it was used by Bede to render Latin columna lucis, the Biblical "pillar of fire." Nautical sense of "one of the horizontal transverse timbers holding a ship together" is from early 13c., hence "greatest breadth of a ship," and slang broad in the beam "wide-hipped" (of persons). To be on the beam (1941) was originally an aviator's term for "to follow the course indicated by a radio beam."


"emit rays of light," early 15c., from beam (n.) in the "ray of light" sense. Sense of "to smile radiantly" is from 1804; that of "to direct radio transmissions" is from 1927. Related: Beamed; beaming.


"emit rays of light," early 15c., from beam (n.) in the "ray of light" sense. Sense of "to smile radiantly" is from 1804; that of "to direct radio transmissions" is from 1927. Related: Beamed; beaming.

Online Etymology Dictionary, © 2010 Douglas Harper
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Idioms and Phrases with beam
The American Heritage® Idioms Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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