Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “focus”

See all translations

focus

noun [C] uk   /ˈfəʊ.kəs/ us    /ˈfoʊ-/ ( plural focuses or formal foci )

focus noun [C] (CENTRE)

C1 the main or central point of something, especially of attention or interest: I think Dave likes to be the focus of attention. The main focus of interest at the fashion show was Christian Lacroix's outrageous evening wear. The media focus on politicians' private lives inevitably switches the attention away from the real issues.
More examples

focus noun [C] (SCIENCE)

(in physics) the point where waves of light or sound that are moving towards each other meet: the focus of a lensbe in/out of focus used to say that a photograph is clear/not clear

focus

verb uk   /ˈfəʊ.kəs/ us    /ˈfoʊ-/ (-s-)
[T] If you focus a device such as a camera or microscope, you move a device on the lens so that you can see a clear picture. [I or T] If you focus your eyes, or if your eyes focus, you try to look directly at an object so that you can see it more clearly: When they first took the bandages off, she/her eyes couldn't focus properly (= she couldn't see clearly).
Phrasal verbs
(Definition of focus from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of focus?
Add Cambridge dictionaries to your browser to your website

Definitions of “focus” in other dictionaries

Word of the Day

guru

a religious leader or teacher in the Hindu or Sikh religion

Word of the Day

The way we move (Verbs for walking and running)

by Kate Woodford,
March 25, 2015
​​​ This week we’re looking at interesting ways to describe the way that people move. Most of the verbs that we’ll be considering describe how fast or slow people move. Others describe the attitude or state of mind of the person walking or running. Some describe both. Starting with verbs for walking slowly,

Read More 

crossfit noun

March 23, 2015
high-intensity strength training Two women in strappy dresses discussed how much weight they could snatch

Read More