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plural foci ˈfō-ˌsī 
also -ˌkī
also focuses 3
c
: adjustment for distinct vision
also : the area that may be seen distinctly or resolved into a clear image
d
4
a
: a point at which rays (as of light, heat, or sound) converge or from which they diverge or appear to diverge
specifically : the point where the geometrical lines or their prolongations conforming to the rays diverging from or converging toward another point intersect and give rise to an image after reflection by a mirror or refraction by a lens or optical system
b
: a point of convergence (see convergence sense 1) of a beam of particles (such as electrons)
Did you know?
The Latin word focus meant “hearth, fireplace.” In the scientific Latin of the 17th century, the word is used to refer to the point at which rays of light refracted by a lens converge. Because rays of sunlight when directed by a magnifying glass can produce enough heat to ignite paper, a word meaning “fireplace” is quite appropriate as a metaphor to describe their convergence point. From this sense of focus have arisen extended senses such as “center of activity.”
Synonyms
Example Sentences
Noun He's successful, but he feels that his life lacks focus. His life lacks a focus. Verb She has an amazing ability to focus for hours at a time. I wasn't able to focus the camera. I wasn't able to get the camera to focus.
Recent Examples on the Web
Ashley Bastock, cleveland, 13 Sep. 2022 Building a culture of service and involvement is an active focus at both schools, Magadance and Eickstead say. Brendon Derr, San Antonio Express-News, 13 Sep. 2022 Either way, the cream melts into skin and sets to a velvety, soft-focus finish. Allure Editors, Allure, 13 Sep. 2022 In consultation with director Elkhanah Pulitzer and dramaturge Lucia Scheckner, Mr. Adams strategically narrowed the libretto’s focus to the political conflict between Antony, the great Roman warrior, and the young Caesar (Octavian). Heidi Waleson, WSJ, 13 Sep. 2022 The early 1960s was a time when gifted and talented programs were starting to catch on, Robinson-Oturu said, putting the focus on academic subjects like math and English. John Kelly, Washington Post, 12 Sep. 2022 Still, some see an opportunity once the queen is buried and the public’s focus shifts to Charles. Patrick Kingsley, BostonGlobe.com, 12 Sep. 2022 The focus will shift to the Packers when the Bears practice Wednesday, and perhaps then Eberflus will be ready to anticipate the rivalry. Colleen Kane, Chicago Tribune, 12 Sep. 2022 Almost immediately — and even as McDaniel was drenched in two colors of Gatorade that defensive linemen Christian Wilkins and Zach Sieler dumped on him in the locker room — the focus shifted to the Dolphins’ next opponent, the Baltimore Ravens. David Furones, Sun Sentinel, 12 Sep. 2022 From Usa Today Network And Wire Reports, USA TODAY, 14 Sep. 2022 Alex Stolyar, the senior vice president and chief development officer for American Place owner Full House Resorts, said with the temporary structure now complete, the Turner Construction Co. can focus on completing the foundation and interior. Steve Sadin, Chicago Tribune, 8 Sep. 2022 The company should focus on its existing business and not expand into newer areas even if this affects its super app strategy, said Venugopal Garre, a senior analyst at Sanford C. Bernstein, a financial-services firm. Nina Trentmann, WSJ, 7 Sep. 2022 Sam Liss, executive director of strategic partnerships in Harvard’s Office of Technology Development, said the idea to focus on tough tech started in 2013, with the launch of an accelerator program for physical sciences and engineering companies. Anissa Gardizy, BostonGlobe.com, 7 Sep. 2022 Hutchinson, a former chairman of the association, has said the task force will focus in part on how states might use money coming to them through the bipartisan gun control bill President Joe Biden signed in June. Andrew Demillo, Chron, 6 Sep. 2022 Barnow said The Goldbergs would instead focus more on the impending arrival of a new baby for newlywed characters Erica (Hayley Orrantia) and Geoff (Sam Lerner). Jon Blistein, Rolling Stone, 30 Aug. 2022 McCarthy, the national advocate for cannabis equity, said San Diego should focus on educating people who might be eligible and making sure no one who should be ineligible games the system. David Garrick, San Diego Union-Tribune, 26 Aug. 2022 The class will mostly focus on songs from Swift’s recent albums, but students are free to bring up older songs for discussion, Scala said. Faith Karimi, CNN, 25 Aug. 2022 See More
Noun
Wasting energy and focus getting angry at the mistakes. Ashley Bastock, cleveland, 13 Sep. 2022 Building a culture of service and involvement is an active focus at both schools, Magadance and Eickstead say. Brendon Derr, San Antonio Express-News, 13 Sep. 2022 Either way, the cream melts into skin and sets to a velvety, soft-focus finish. Allure Editors, Allure, 13 Sep. 2022 In consultation with director Elkhanah Pulitzer and dramaturge Lucia Scheckner, Mr. Adams strategically narrowed the libretto’s focus to the political conflict between Antony, the great Roman warrior, and the young Caesar (Octavian). Heidi Waleson, WSJ, 13 Sep. 2022 The early 1960s was a time when gifted and talented programs were starting to catch on, Robinson-Oturu said, putting the focus on academic subjects like math and English. John Kelly, Washington Post, 12 Sep. 2022 Still, some see an opportunity once the queen is buried and the public’s focus shifts to Charles. Patrick Kingsley, BostonGlobe.com, 12 Sep. 2022 The focus will shift to the Packers when the Bears practice Wednesday, and perhaps then Eberflus will be ready to anticipate the rivalry. Colleen Kane, Chicago Tribune, 12 Sep. 2022 Almost immediately — and even as McDaniel was drenched in two colors of Gatorade that defensive linemen Christian Wilkins and Zach Sieler dumped on him in the locker room — the focus shifted to the Dolphins’ next opponent, the Baltimore Ravens. David Furones, Sun Sentinel, 12 Sep. 2022 Verb
The DriveElectricTN Momentum Summit will focus on transportation electrification efforts and include breakout sessions on community outreach, electric vehicle infrastructure, policies and programs, and innovation, officials said. From Usa Today Network And Wire Reports, USA TODAY, 14 Sep. 2022 Alex Stolyar, the senior vice president and chief development officer for American Place owner Full House Resorts, said with the temporary structure now complete, the Turner Construction Co. can focus on completing the foundation and interior. Steve Sadin, Chicago Tribune, 8 Sep. 2022 The company should focus on its existing business and not expand into newer areas even if this affects its super app strategy, said Venugopal Garre, a senior analyst at Sanford C. Bernstein, a financial-services firm. Nina Trentmann, WSJ, 7 Sep. 2022 Sam Liss, executive director of strategic partnerships in Harvard’s Office of Technology Development, said the idea to focus on tough tech started in 2013, with the launch of an accelerator program for physical sciences and engineering companies. Anissa Gardizy, BostonGlobe.com, 7 Sep. 2022 Hutchinson, a former chairman of the association, has said the task force will focus in part on how states might use money coming to them through the bipartisan gun control bill President Joe Biden signed in June. Andrew Demillo, Chron, 6 Sep. 2022 Barnow said The Goldbergs would instead focus more on the impending arrival of a new baby for newlywed characters Erica (Hayley Orrantia) and Geoff (Sam Lerner). Jon Blistein, Rolling Stone, 30 Aug. 2022 McCarthy, the national advocate for cannabis equity, said San Diego should focus on educating people who might be eligible and making sure no one who should be ineligible games the system. David Garrick, San Diego Union-Tribune, 26 Aug. 2022 The class will mostly focus on songs from Swift’s recent albums, but students are free to bring up older songs for discussion, Scala said. Faith Karimi, CNN, 25 Aug. 2022 See More Word History
Etymology
Noun and Verb
New Latin, from Latin, hearth
First Known Use
Noun
1664, in the meaning defined at sense 4a
Verb
1807, in the meaning defined at transitive sense 1
Time Traveler
The first known use of focus was in 1664 Phrases Containing focus
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