Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “focus”

focus

noun  /ˈfoʊ·kəs/ (plural focuses or foci  /ˈfoʊ·sɑɪ, -kɑɪ/) us  

focus noun (MAIN OBJECT)

[C] (also focal point) the main object or interest, or the attention given something: The focus of attention has shifted from the economy to improving the public schools. State officials urge continued focus on mosquito control.

focus noun (POSITION)

physics [C/U] the exact place or position where beams of light, heat, or sound meet after moving toward each other; focal point earth science [C/U] A focus is also the exact position inside the earth where an earthquake begins. in focus (also out of focus) A photograph or an image seen through a device with a lens, such as a microscope, telescope, or camera, that is in focus is clear and one that is out of focus is not clear.

focus

verb [I/T]  /ˈfoʊ·kəs/ us  

focus verb [I/T] (DIRECT ATTENTION)

to direct attention toward something or someone: [I] Tonight’s program focuses on homelessness.

focus verb [I/T] (ADJUST)

to adjust something in order to see more clearly: [T] I focused the binoculars on the bird on a branch of the tree.
(Definition of focus from the Cambridge Academic Content Dictionary © Cambridge University Press)
What is the pronunciation of focus?
Browse related topics

You are looking at an entry to do with Paying attention and being careful, but you might be interested in these topics from the Attention and care topic area:

Add Cambridge dictionaries to your browser to your website

Definitions of “focus” in other dictionaries

Word of the Day

for starters

used to say that something is the first in a list of things

Word of the Day

Countability – grammar codes

by Dom Glennon​​,
November 26, 2014
Advices and informations Have you ever noticed strange codes in square brackets on entries in Cambridge Dictionaries Online and wondered what they mean? These are grammar codes, giving you a brief summary of how that word behaves grammatically. More information can be obtained by hovering your cursor over the code, and there’s

Read More 

ped-text verb

November 24, 2014
to text someone while walking I’m ped-texting, I’m looking down at my phone, 75 percent of the time.

Read More