Definition of focus

The noun focus has 7 senses? (first 4 from tagged texts)

(the concentration of attention or energy on something; "the focus of activity shifted to molecular biology"; "he had no direction in his life")

(maximum clarity or distinctness of an image rendered by an optical system; "in focus"; "out of focus")

(maximum clarity or distinctness of an idea; "the controversy brought clearly into focus an important difference of opinion")

(a central point or locus of an infection in an organism; "the focus of infection")

(special emphasis attached to something; "the stress was more on accuracy than on speed")

(a point of convergence of light (or other radiation) or a point from which it diverges)

(a fixed reference point on the concave side of a conic section)

The verb focus has 5 senses? (first 3 from tagged texts)

(direct one's attention on something; "Please focus on your studies and not on your hobbies")

(cause to converge on or toward a central point; "Focus the light on this image")

(bring into focus or alignment; to converge or cause to converge; of ideas or emotions)

(become focussed or come into focus; "The light focused")

(put (an image) into focus; "Please focus the image; we cannot enjoy the movie")