| beam | | |
| n. (communication) | 1. beam, radio beam | a signal transmitted along a narrow path; guides airplane pilots in darkness or bad weather. |
| ~ signal, signaling, sign | any nonverbal action or gesture that encodes a message.; "signals from the boat suddenly stopped" |
| n. (artifact) | 2. beam | long thick piece of wood or metal or concrete, etc., used in construction. |
| ~ box beam, box girder | a beam built up from boards; has a hollow rectangular cross section. |
| ~ cantilever | projecting horizontal beam fixed at one end only. |
| ~ girder | a beam made usually of steel; a main support in a structure. |
| ~ header | a framing member crossing and supporting the ends of joists, studs, or rafters so as to transfer their weight to parallel joists, studs, or rafters. |
| ~ lintel, header | horizontal beam used as a finishing piece over a door or window. |
| ~ joist | beam used to support floors or roofs. |
| ~ keel | one of the main longitudinal beams (or plates) of the hull of a vessel; can extend vertically into the water to provide lateral stability. |
| ~ keelson | a longitudinal beam connected to the keel of ship to strengthen it. |
| ~ piece | a separate part of a whole.; "an important piece of the evidence" |
| ~ rafter, balk, baulk | one of several parallel sloping beams that support a roof. |
| ~ rider plate | a horizontal beam (or plate) connected to the top of a ship's vertical keel or to the keelson. |
| ~ ridgepole, rooftree, ridge | a beam laid along the edge where two sloping sides of a roof meet at the top; provides an attachment for the upper ends of rafters. |
| ~ shoring, shore | a beam or timber that is propped against a structure to provide support. |
| ~ structural member | support that is a constituent part of any structure or building. |
| ~ tie beam, tie | a horizontal beam used to prevent two other structural members from spreading apart or separating.; "he nailed the rafters together with a tie beam" |
| ~ timber | a beam made of wood. |
| ~ crossbeam, crosspiece, trave, traverse | a horizontal beam that extends across something. |
| ~ wood | the hard fibrous lignified substance under the bark of trees. |
| n. (phenomenon) | 3. beam, electron beam, ray | a group of nearly parallel lines of electromagnetic radiation. |
| ~ cathode ray | a beam of electrons emitted by the cathode of an electrical discharge tube. |
| ~ electromagnetic radiation, electromagnetic wave, nonparticulate radiation | radiation consisting of waves of energy associated with electric and magnetic fields resulting from the acceleration of an electric charge. |
| ~ particle beam | a collimated flow of particles (atoms or electrons or molecules). |
| n. (phenomenon) | 4. beam, beam of light, irradiation, light beam, ray, ray of light, shaft, shaft of light | a column of light (as from a beacon). |
| ~ heat ray | a ray that produces a thermal effect. |
| ~ high beam | the beam of a car's headlights that provides distant illumination. |
| ~ light, visible light, visible radiation | (physics) electromagnetic radiation that can produce a visual sensation.; "the light was filtered through a soft glass window" |
| ~ moon-ray, moon ray, moonbeam | a ray of moonlight. |
| ~ sunbeam, sunray | a ray of sunlight. |
| ~ laser beam | a beam of light generated by a laser. |
| ~ low beam | the beam of a car's headlights that provides illumination for a short distance. |
| n. (attribute) | 5. beam | (nautical) breadth amidships. |
| ~ ship | a vessel that carries passengers or freight. |
| ~ width, breadth | the extent of something from side to side. |
| n. (artifact) | 6. beam | the broad side of a ship.; "they sighted land on the port beam" |
| ~ side | an extended outer surface of an object.; "he turned the box over to examine the bottom side"; "they painted all four sides of the house" |
| n. (artifact) | 7. balance beam, beam | a gymnastic apparatus used by women gymnasts. |
| ~ exerciser, gymnastic apparatus | sports equipment used in gymnastic exercises. |
| v. (body) | 8. beam | smile radiantly; express joy through one's facial expression. |
| ~ smile | change one's facial expression by spreading the lips, often to signal pleasure. |
| v. (weather) | 9. beam, shine | emit light; be bright, as of the sun or a light.; "The sun shone bright that day"; "The fire beamed on their faces" |
| ~ beat down | shine hard.; "The sun beat down on the hikers" |
| ~ beacon | shine like a beacon. |
| ~ glare | shine intensely.; "The sun glared down on us" |
| ~ flame, flare | shine with a sudden light.; "The night sky flared with the massive bombardment" |
| ~ outshine | shine brighter than.; "What star outshines the sun?" |
| ~ shimmer | shine with a weak or fitful light.; "Beech leaves shimmered in the moonlight" |
| ~ flicker, flick | shine unsteadily.; "The candle flickered" |
| ~ blaze | shine brightly and intensively.; "Meteors blazed across the atmosphere" |
| ~ winkle, twinkle, scintillate | emit or reflect light in a flickering manner.; "Does a constellation twinkle more brightly than a single star?" |
| ~ burn, glow | shine intensely, as if with heat.; "The coals were glowing in the dark"; "The candles were burning" |
| v. (communication) | 10. beam | express with a beaming face or smile.; "he beamed his approval" |
| ~ evince, express, show | give expression to.; "She showed her disappointment" |
| v. (communication) | 11. air, beam, broadcast, send, transmit | broadcast over the airwaves, as in radio or television.; "We cannot air this X-rated song" |
| ~ broadcast medium, broadcasting | a medium that disseminates via telecommunications. |
| ~ publicize, bare, publicise, air | make public.; "She aired her opinions on welfare" |
| ~ satellite | broadcast or disseminate via satellite. |
| ~ sportscast | broadcast a sports event. |
| ~ telecast, televise | broadcast via television.; "The Royal wedding was televised" |
| ~ interrogate | transmit (a signal) for setting off an appropriate response, as in telecommunication. |
| ~ air | be broadcast.; "This show will air Saturdays at 2 P.M." |
| ~ rebroadcast, rerun | broadcast again, as of a film. |
| v. (perception) | 12. beam, glow, radiate, shine | have a complexion with a strong bright color, such as red or pink.; "Her face glowed when she came out of the sauna" |
| ~ appear, seem, look | give a certain impression or have a certain outward aspect.; "She seems to be sleeping"; "This appears to be a very difficult problem"; "This project looks fishy"; "They appeared like people who had not eaten or slept for a long time" |
| v. (emotion) | 13. beam, glow, radiate, shine | experience a feeling of well-being or happiness, as from good health or an intense emotion.; "She was beaming with joy"; "Her face radiated with happiness" |
| ~ feel, experience | undergo an emotional sensation or be in a particular state of mind.; "She felt resentful"; "He felt regret" |
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