focus

Become focussed or come into focus.

“The light focused”

Cause to converge on or toward a central point.

Direct one's attention on something.

“Please focus on your studies and not on your hobbies”

Bring into focus or alignment; to converge or cause to converge; of ideas or emotions.

Put (an image) into focus.

“Please focus the image; we cannot enjoy the movie”

Maximum clarity or distinctness of an idea.

“the controversy brought clearly into focus an important difference of opinion”

Maximum clarity or distinctness of an image rendered by an optical system.

“in focus”

“out of focus”

The concentration of attention or energy on something.

“the focus of activity shifted to molecular biology”

Special emphasis attached to something.

A central point or locus of an infection in an organism.

“the focus of infection”

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.