focus

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noun – the point at which rays of light or other radiation converge. The focus of a lens is also called the focal point. (NOTE: The plural form is foci. / f??sa?/), to come into focus to become clearer as through the viewfinder of a camera, verb – 1. to make things such as light rays converge on a central point. A parabolic reflector focuses the transmission into a narrow beam. 2. to give an object or image a clear outline or detail by adjustment of an optical device. Focus the microscope in order to make the image easier to see. 3. to direct toward a particular point or purpose. The crew focused all their attention on finding a solution to the problem.

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