noun, plural fo·cus·es, fo·ci [foh-sahy, -kahy] /ˈfoʊ saɪ, -kaɪ/.
- the focal point of a lens, on which rays converge or from which they deviate.
- the focal length of a lens; the distance from a focal point to a corresponding principal plane.
- the clear and sharply defined condition of an image.
- the position of a viewed object or the adjustment of an optical device necessary to produce a clear image: in focus; out of focus.
verb (used with object), fo·cused, fo·cus·ing or (especially British) fo·cussed, fo·cus·sing.
verb (used without object), fo·cused, fo·cus·ing or (especially British) fo·cussed, fo·cus·sing.
- foch, ferdinand,
- focus group,
- focus puller,
- focused strategy,
- focusing cloth
Origin of focus
Examples from the Web for focus
Stephanie Giorgio, a classical musician, credits The Class for helping her cope with anxiety, focus, fear, and self-doubt.How Taryn Toomey’s ‘The Class’ Became New York’s Latest Fitness Craze|Lizzie Crocker|January 9, 2015|DAILY BEAST
And too much of a focus on numbers can obscure strategic truths.Pentagon Doesn’t Know How Many People It’s Killed in the ISIS War|Nancy A. Youssef|January 7, 2015|DAILY BEAST
His wife passed away and they had kids, and he wanted to focus on being a dad so he just stopped to raise his kids.Coffee Talk with Fred Armisen: On ‘Portlandia,’ Meeting Obama, and Taylor Swift’s Greatness|Marlow Stern|January 7, 2015|DAILY BEAST
The focus here was on how fast oil would come out of the Canadian fields.
Investigators will focus on whether the sudden emergency was so extreme that no degree of pilot skill would have helped.Flight 8501 Poses Question: Are Modern Jets Too Automated to Fly?|Clive Irving|January 4, 2015|DAILY BEAST
The silence seemed to focus itself upon the cook, who fumbled at his coat collar and cleared his voice.Hilda|Sarah Jeanette Duncan
Of course, the real force of the aim lies in its serving as the focus of thought.Principles of Teaching|Adam S. Bennion
The constitution of the language is the result of the change of focus from signs to relations among them.The Civilization of Illiteracy|Mihai Nadin
Each of the points was the focus of frightful and singular pangs.Sea Stories|Various
The little spruce leaped out clear and distinct as he got the focus.The Boy Scouts in A Trapper's Camp|Thornton W. Burgess
noun plural -cuses or -ci (-saɪ, -kaɪ, -kiː)
verb -cuses, -cusing, -cused, -cusses, -cussing or -cussed
Word Origin for focus
1640s, from Latin focus "hearth, fireplace" (also, figuratively, "home, family"), of unknown origin, used in post-classical times for "fire" itself, taken by Kepler (1604) in a mathematical sense for "point of convergence," perhaps on analogy of the burning point of a lens (the purely optical sense of the word may have existed before Kepler, but it is not recorded). Introduced into English 1650s by Hobbes. Sense transfer to "center of activity or energy" is first recorded 1796.
1775 in the literal sense; 1807 in the figurative sense, from focus (n.). Related: Focused; focusing; less commonly focussed; focussing.