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Definitions
Trivia Time
Which astronomer introduced the word focus as a mathematical term?

focus

[foh-kuhs] / ˈfoʊ kəs /
NOUN
center or object of attention
Synonyms
Antonyms




NOUN
point at which light or sound converge
Synonyms


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The researchers focus on where these cells appear during different stages of healing and how diabetes can disrupt their normal behavior.

From Science Daily ● Oct. 10, 2026

On the Queen's literacy campaign, he said she provided an important symbolic focus.

From BBC ● Oct. 10, 2026

Pike's stunning survival renewed focus on the ethical debate surrounding capital punishment in the United States.

From Barron's ● Oct. 10, 2026

Brown taking charge of the June model shutdown in Washington allowed Amodei to focus on customer relationships and other CEO responsibilities, a person familiar with the matter said.

From The Wall Street Journal ● Oct. 9, 2026

I had thought—naively it turns out—that the endeavor, the focus, the plan, might actually make my father proud.

From "The Brightwood Code" by Monica Hesse

The fasting mice had better blood values, less fatty liver and liver inflammation and above all: they developed less liver cancer and had fewer cancer foci in the liver.

From Science Daily ● May 7, 2024

An ellipse is the set of all points in the plane the sum of whose distances from two fixed points, called the foci, is a constant.

From Textbooks ● Dec. 21, 2021

Identify the center, vertices, co-vertices, and foci of the ellipse.

From Textbooks ● Sep. 23, 2020

TRY IT #5 Graph the ellipse given by the equation Identify and label the center, vertices, co- vertices, and foci.

From Textbooks ● Sep. 23, 2020

Even therapeutic measures have the important result not only of curing the patient but of reducing the foci of infection.

From "Silent Spring" by Rachel Carson

The research focuses on Nav1.7, a protein that functions as a sodium channel.

From Science Daily ● Oct. 8, 2026

The film focuses on the investigation that led to "The Facebook Files," a trove of statements and data leaked in 2021.

From Barron's ● Oct. 7, 2026

“Ultimately, it all comes down to valuations,” said Tricot, whose work focuses on London and European markets.

From The Wall Street Journal ● Oct. 6, 2026

The second study, also conducted by Lochan, Dinesh Kumar Sharma and Anand Kumar, who work at the Hemvati Nandan Bahuguna Garhwal University, focuses on the bird's behavioural changes.

From BBC ● Oct. 6, 2026

He gestures to complex problems facing the new country but focuses on the 1966 massacres.

From "Half of a Yellow Sun" by Chimamanda Ngozi Adichie

"This work," it says, "has been done in line with government regulation and dietary guidance, which focusses on the nutritional content of food rather than the level of processing."

From BBC ● Sep. 26, 2026

"The metallic tip acts like an antenna and focusses the electromagnetic field in a tiny area below its apex."

From Science Daily ● Nov. 20, 2024

“This shocking news focusses our minds on Michael’s wife Clare and their sons,” said Roy Taylor, a professor of medicine and metabolism at Newcastle University who co-authored “The 8-Week Blood Sugar Diet” with Mosley.

From Seattle Times ● Jun. 7, 2024

This latest research focusses on how this happens at the structural level.

From Science Daily ● Dec. 5, 2023

The reason for this is that the analysis focusses only on the link between wage costs and productivity.

From Definition & Reality in the General Theory of Political Economy by Thomas Colignatus

The researchers focused on people with mild to moderate osteoarthritis affecting the inner part of the knee.

From Science Daily ● Oct. 11, 2026

“Just trying not to flip the barrel so soon,” Bates said of what Ohtani has focused on mechanically.

From Los Angeles Times ● Oct. 11, 2026

"It's understandable because GPs are often confronted with depressed patients and therefore they're very focused on diagnosing depression correctly," he said.

From BBC ● Oct. 10, 2026

Out of these materials Milton fashioned a new epic focused on the temptations of forbidden knowledge.

From The Wall Street Journal ● Oct. 9, 2026

Her eyes are focused on 467 Astor Street—the only home I’ve ever had—where the scary line of vehicles ends.

From "South of Somewhere" by Kalena Miller

Authorities have said rescue efforts have been largey focussed on the Trishuli 3A and 3B sites - hydropower projects with tunnels.

From BBC ● Aug. 31, 2026

But that didn't stop its shares from surging nearly 10 percent on Thursday, as investors focussed on its profit outlook.

From Barron's ● Aug. 14, 2026

Pushing through this is definitely not easy, England stayed focussed, they stayed in the zone, a huge shout out to them because that's not an easy one.

From BBC ● Jul. 24, 2026

Across Caracas and La Guaira, many were focussed instead on Sunday services in churches to remember those lost and still missing.

From Barron's ● Jul. 5, 2026

“Partly on his interest being focussed on what he calls ‘the soul,’ which he persists in regarding as an entity independent of the physical environment, whereas, as I tried to point out to him ...”

From "Brave New World" by Aldous Huxley

Rather than focusing only on relieving pain, this approach changes the mechanics of walking to reduce pressure on vulnerable parts of the knee.

From Science Daily ● Oct. 11, 2026

“If they want me to go out, then I go out. But for me, just those are key things for me. Postseason is just focusing on the game right in front of me.”

From Los Angeles Times ● Oct. 10, 2026

Markets are focusing on data including the University of Michigan’s preliminary consumer sentiment index, UOB Global Economics & Markets Research says.

From The Wall Street Journal ● Oct. 9, 2026

Similarly, Finnish driver Anita Mäkelä has won the European championship four times – three of them after a six-year break focusing on her children and running her family's chicken farm.

From BBC ● Oct. 8, 2026

Felix had been buying stuff he wanted, not focusing on the price and the end goal of spending every penny.

From "Millionaires for the Month" by Stacey McAnulty

It will also examine decision-making and risk assessment training, focussing on how officers are helped to make bias-free decisions and identify where immediate action like first aid is required.

From BBC ● Aug. 25, 2026

It has been promoted as a means of bringing people together in the shared story of their traumatic past, with "reparations" quite literally focussing on "repair" at a very human level.

From BBC ● Aug. 16, 2026

AI has shaken the cyber-security world, with concerns focussing on Mythos in particular.

From BBC ● May 27, 2026

As chair of the Work and Pensions Committee, he criticised the scheme for focussing on "process rather than outcomes".

From BBC ● Jan. 15, 2026

Occasionally, focussing on a linguistic alteration can mislead us into thinking that something important has happened when it hasn’t, or that something happened at a particular moment when it actually happened earlier.

From "The Invention of Science" by David Wootton




Vocabulary lists containing focus


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