American English

Definition of focus verb from the Oxford Advanced American Dictionary

        

    focus

     verb
    verb
    NAmE//ˈfoʊkəs//
     
    Verb Forms present simple I / you / we / they focus
     
    he / she / it focusesfocusses
     
    past simple focusedfocussed
     
    -ing form focusingfocussing
     
     
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  1. 1 [intransitive, transitive] to give attention, effort, etc. to one particular subject, situation, or person rather than another focus (on somebody/something) The discussion focused on three main problems. Each exercise focuses on a different grammar point. focus something (on somebody/something) The visit helped to focus world attention on the plight of the refugees.
  2. 2 [intransitive, transitive] (of your eyes, a camera, etc.) to adapt or be adjusted so that things can be seen clearly; to adjust something so that you can see things clearly It took a few moments for her eyes to focus in the dark. focus on somebody/something Let your eyes focus on objects that are farther away from you. In this scene, the camera focuses on the actor's face. focus something (on somebody/something) He focused his blue eyes on her. I quickly focused the camera on the children.
  3. 3[transitive] focus something (on something) (technology) to aim light onto a particular point using a lens
See the Oxford Advanced Learner's Dictionary entry: focus