e-tutor.com - Online tutoring, learning, and homeschooling resources      Home    Enroll    Tour    Contact Us    Graphing Calculator         Dictionary Home    Index    About   

Definition of 'focus'


  1. the concentration of attention or energy on something; "the focus of activity shifted to molecular biology"; "he had no direction in his life"
       Synonyms: focusing focussing focal point direction centering
  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"
       Synonyms: focal point nidus
  5. special emphasis attached to something; "the stress was more on accuracy than on speed"
       Synonyms: stress
  6. a point of convergence of light (or other radiation) or a point from which it diverges
       Synonyms: focal point
  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"
       Synonyms: concentrate center centre pore rivet
  2. cause to converge on or toward a central point; "Focus the light on this image"
       Antonyms: blur
  3. bring into focus or alignment; to converge or cause to converge; of ideas or emotions
       Synonyms: concenter concentre focalize focalise
  4. become focussed or come into focus; "The light focused"
       Synonyms: focalize focalise
       Antonyms: blur dim slur
  5. put (an image) into focus; "Please focus the image; we cannot enjoy the movie"
       Synonyms: focalize focalise sharpen
       Antonyms: blur blear

Get this dictionary without ads as part of the e-Tutor Virtual Learning Program.