Tra từ focus - Từ điển Oxford Advanced Learner 8th

focus AW [focus focuses focusses focused focussed focusing focussing] verb, noun BrE [ˈfəʊkəs] NAmE [ˈfoʊkəs]
verb (-s-or -ss-)
1. intransitive, transitive to give attention, effort, etc. to one particular subject, situation or person rather than another
•~ (on/upon sb/sth) The discussion focused on three main problems.
• Each exercise focuses on a different grammar point.
•~ sth (on/upon sb/sth) The visit helped to focus world attention on the plight of the refugees.
2. intransitive, transitive (of your eyes, a camera, etc.)to adapt or be adjusted so that things can be seen clearly; to adjust sth so that you can see things clearly
• It took a few moments for her eyes to focus in the dark.
•~ on sb/sth Let your eyes focus on objects that are further away from you.
•In this scene, the camera focuses on the actor's face.
•~ sth (on sb/sth) He focused his blue eyes on her.
•I quickly focused the camera on the children.
3. transitive ~ sth (on sth) (technical)to aim light onto a particular point using a ↑lens
Verb forms:

Word Origin:
mid 17th cent. (as a term in geometry and physics): from Latin, literally domestic hearth.

Thesaurus:
focus verb
1. I, T
•The discussion focused on two main issues.
target • • direct • • turn • • be aimed at sb • • orient • |formal address •
focus/target/turn sth on sth
efforts/resources/campaigns are focused on/targeted at/directed at sb/sth
attention is focused on/directed at/turned to sb/sth
2. I, T
•Focus the camera on the children.
point • • aim • • direct • • turn •
focus/turn sth on sb/sth
point/aim/direct sth at sb/sth
focus/point/aim a camera
focus/aim/direct (a) light

Example Bank:
•Degree courses have traditionally focused on the established great writers of the past.
•He inevitably focused on his own concerns, with only a passing query about Jeff.
•She blinked and tried to focus.
•The attention of the news media was firmly focused on the elections.
•The department undertakes highly focused research.
•The eye will automatically focus on the small group in the foreground.
•The study focuses exclusively on schools.
•The study was criticized for being too narrowly focused.
•Think of some questions that will help focus the discussion.
•We need to focus upon the main issues.
•At the moment, aid agencies are focusing their efforts on women and children.
•I was finding it hard to focus my mind properly.
•In this scene, the camera focuses on the actor's face.
•Much recent concern has been focused upon sea level rises.
•Our activity is mainly focused on responding to emergencies.
•Schools should not focus exclusively on exam results.
•She used her glasses to focus the sun's rays on the twigs and spark a fire.
•The discussion focused on three main issues.
•This provides an opportunity to focus research on the health needs of the population.
•Where do you really wish to focus your time and energy?
•You need to focus closely on the matter at hand.

noun (pl. fo·cusesor fociBrE [ˈfəʊsaɪ] ; NAmE [ˈfoʊsaɪ] )
1. uncountable, countable, usually singular the thing or person that people are most interested in; the act of paying special attention to sth and making people interested in it
• It was the main focus of attention at the meeting.
•~ for sth His comments provided a focus for debate.
•~ on sth We shall maintain our focus on the needs of the customer.
•In today's lecture the focus will be on tax structures within the European Union.
•The incident brought the problem of violence in schools into sharp focus.
•What we need now is a change of focus (= to look at things in a different way).
2. uncountable a point or distance at which the outline of an object is clearly seen by the eye or through a ↑lens
• The children's faces are badly out of focus (= not clearly shown) in the photograph.
• The binoculars were not in focus (= were not showing things clearly).
3. (also ˈfocal point)countable (physics)a point at which waves of light, sound, etc. meet after ↑reflection or ↑refraction; the point from which waves of light, sound, etc. seem to come
4. countable (geology)the point at which an ↑earthquake starts to happen

Word Origin:
mid 17th cent. (as a term in geometry and physics): from Latin, literally domestic hearth.

Thesaurus:
focus noun U, C, usually sing.
•His comments provided a focus for debate.
focal point • • hub • • heart • |BrE centre • |AmE center •
an important focus/focal point/hub
act/serve as a focus/focal point/centre
give sth/provide a focus/focal point

Example Bank:
•Cities have always acted as the principal focus of political life.
•He found he was now their main focus of attention.
•I found the focus of the debate too narrow.
•I've directed my focus towards/toward developing my skills.
•Our primary focus this term will be on group work.
•She became a focus for all his anger.
•The binoculars were not in focus.
•The children's faces are badly out of focus in the photograph.
•The company's restructuring is designed to give a sharper focus on key growth markets.
•The focus has now shifted towards the problem of long-term unemployment.
•The legal team tried to shift the focus onto the victim.
•The media focus has now shifted onto something else.
•The problem with your plan is that it doesn't have a clear focus.
•The question of compensation comes into focus.
•The restructuring is designed to give a sharper focus on key markets.
•This case has brought the problem of drug abuse in schools into sharp focus.
•When I got glasses suddenly the whole world came into focus.
•an increased focus on younger people
•soft focus shots of cuddly animals
•the focus of my research
•In today's lecture the focus will be on tax structures within the European Union.
•What we need now is a change of focus.

See also: ↑focal point