Meaning & Definition of Focus in English

1. The concentration of attention or energy on something

• "The focus of activity shifted to molecular biology"

• "He had no direction in his life"

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

• "In focus"

• "Out of focus"

3. Maximum clarity or distinctness of an idea

• "The controversy brought clearly into focus an important difference of opinion"

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

• "The focus of infection"

5. Special emphasis attached to something

• "The stress was more on accuracy than on speed"

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

7. A fixed reference point on the concave side of a conic section

1. Direct one's attention on something

• "Please focus on your studies and not on your hobbies"

2. Cause to converge on or toward a central point

• "Focus the light on this image"

3. Bring into focus or alignment

• To converge or cause to converge

• Of ideas or emotions

4. Become focussed or come into focus

• "The light focused"

5. Put (an image) into focus

• "Please focus the image

• We cannot enjoy the movie"