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.
Origin of focus
Synonyms for focus
Related Words for focustarget, spotlight, fixate, direct, concentrate, put, meet, attract, limelight, core, center, hub, heart, headquarters, seat, locus, polestar, cynosure, centralize, join
Examples from the Web for focus
Contemporary Examples of 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
January 9, 2015
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
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
January 7, 2015
The focus here was on how fast oil would come out of the Canadian fields.Fact-Checking the Sunday Shows: Jan. 4
January 5, 2015
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?
January 4, 2015
Historical Examples of focus
This gives it leverage, or focus for the outworking of its forces.Understanding the Scriptures
For the first time Kingozi's careless, candid stare narrowed to a focus.
All outside the focus of the dancers turned gray--goom, zup!
The far-reaching plains to the west offered him too wide a focus.The Law-Breakers
He changed the focus—they were gone before he could get their images sharp.Two Thousand Miles Below
Charles Willard Diffin
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.