Definitions For Focus

noun

• Maximum clarity or distinctness of an image rendered by an optical system
• Maximum clarity or distinctness of an idea
• The concentration of attention or energy on something
• A fixed reference point on the concave side of a conic section
• A point of convergence of light (or other radiation) or a point from which it diverges
• A central point or locus of an infection in an organism
• Special emphasis attached to something
• A subject that is being discussed or studied : the subject on which people's attention is focused
• A main purpose or interest
• A point at which rays of light, heat, or sound meet or from which they move apart or appear to move apart ; especially : the point at which an image is formed by a mirror, a lens, etc.

verb

• Put (an image) into focus
• Become focussed or come into focus
• Direct one's attention on something
• Bring into focus or alignment; to converge or cause to converge; of ideas or emotions
• Cause to converge on or toward a central point
• To cause (something, such as attention) to be directed at something specific
• To direct your attention or effort at something specific
• To adjust (something, such as a lens or a camera) to make an image clear