focus

Part of speech: verb

To bring to a focus.

Part of speech: verb

To adjust or bring to a focus; concentrate.

Part of speech: noun

A point of meeting of rays of light; any point of concentration.

Part of speech: noun

Geom. One of two points, as in an ellipse, the sum or difference of whose distances to any point of the curve is always the same.

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Usage examples "focus":

  1. His ideas upon the subject are: " I figure that the earthquake which caused so much damage in San Francisco came from what we call the focus of disturbance. - "Complete Story of the San Francisco Horror", Richard Linthicum Trumbull White Samuel Fallows.
  2. You focus on him and say, 'What a beastly shame! - "The Honorable Senator Sage-Brush", Francis Lynde.
  3. In consequence the hotel has ceased to be, what it undoubtedly was twenty years ago, the focus of our summer life. - "The Ways of Men", Eliot Gregory.