Tra từ beam - Từ điển Oxford Advanced Learner 8th

beam [beam beams beamed beaming] noun, verb BrE [biːm] NAmE [biːm]
noun
1. a line of light, electric waves or ↑particles
•narrow beams of light/sunlight
•the beam of a torch/flashlight
•a laser/electron beam
• (BrE)The car's headlights were on full beam (= shining as brightly as possible and not directed downwards).
• (NAmE)a car with its high beams on
2. a long piece of wood, metal, etc. used to support weight, especially as part of the roof in a building
•The cottage had exposed oak beams.
3. (especially BrE) (NAmE usually ˈbalance beam)a wooden bar that is used in the sport of ↑gymnastics for people to move and balance on
•The gymnast performed a somersault on the beam.
4. a wide and happy smile
•a beam of satisfaction

Word Origin:
Old English bēam ‘tree, beam’, of West Germanic origin; related to Dutch boom and German Baum.

Example Bank:
•He played the beam of his torch over the wall of the cave.
•He was suddenly caught in the full beam of a searchlight.
•They focus a high-powered X-ray beam on the affected area.
•a car with its headlights on full beam
•a cosy pub with exposed oak beams
•a cottage with original beams and a thatched roof
•an old house with exposed oak beams
•car headlights on full beam
•the beam from the lighthouse
•A concrete beam was put in to replace the wall we removed.
•The cottage had low ceilings with exposed dark oak beams.
•The missiles are bolted to reinforced beams in the floor.
Idiom: ↑off beam
Derived: ↑beam somebody up

verb
1. intransitive, transitive, no passive to have a big happy smile on your face
•~ (at sb) He beamed at the journalists.
•~ (with sth) She was positively beaming with pleasure.
•~ sth (at sb) The barman beamed a warm smile at her.
•His broad face beamed a hearty welcome.
•‘I'd love to come,’ she beamed (= said with a large smile).
2. transitive + adv./prep. to send radio or television signals over long distances using electronic equipment
•Live pictures of the ceremony were beamed around the world.
3. intransitive + adv./prep. to produce a stream of light and/or heat
•The morning sun beamed down on us.
•Light beamed through a hole in the curtain.
see smile/grin/beam from ear to ear at ↑ear
Verb forms:

Word Origin:
Old English bēam ‘tree, beam’, of West Germanic origin; related to Dutch boom and German Baum.

Example Bank:
•He beamed broadly at them, clearly very pleased to see them.
•His face beamed with pleasure.
•She beamed happily at Maxim.
•She positively beamed with satisfaction.
•‘I'd love to come,’ she beamed.

See also: ↑balance beam