nouns
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"
is a type of (narrower)
the quality of being sharp and clear
maximum clarity or distinctness of an idea
"the controversy brought clearly into focus an important difference of opinion"
is a type of (narrower)
free from obscurity and easy to understand; the comprehensibility of clear expression
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
is a type of (narrower)
the precise location of something; a spatially limited location
"she walked to a point where she could survey the whole street"
verbs
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"
is a type of (narrower)
make (images or sounds) sharp or sharper
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"