Main entry: sharpen, focalise, focalize, focus
Definition: put (an image) into focus
Usage: Please focus the image; we cannot enjoy the movie
Main entry: focalise, focalize, focus
Definition: become focussed or come into focus
Usage: The light focused
Main entry: focus
Definition: cause to converge on or toward a central point
Usage: Focus the light on this image
Antonyms: blur
Definition: to make less distinct or clear