focus

Focus is something that camera lenses and sleepy students are always being asked to do. For cameras, it means finding a point where the subject is clear or "in focus." For students, it means paying attention.

Focus is all about finding a center — of a parabolic curve, of a lens, of a meditative state. In Latin, focus meant 'domestic hearth,' which just goes to show that not much has changed — since kitchens remain the focus of the modern home. Focus can be used as a verb, as in "I need to focus on my work, so I can play video games later;" and as a noun, as in "What is the focus of this essay? I can't tell, since the writer seems to be all over the place."

Primary Meanings of focus

1.
nv
the concentration of attention or energy on something
direct one's attention on something
2.
nv
maximum clarity or distinctness of an image rendered by an optical system
put (an image) into focus
3.
nv
a point of convergence of light (or other radiation) or a point from which it diverges
cause to converge on or toward a central point
4.
n
a fixed reference point on the concave side of a conic section
Full Definitions of focus
1

n the concentration of attention or energy on something

“the focus of activity shifted to molecular biology”
Synonyms:
centering, direction, focal point, focusing, focussing
Types:
particularism
a focus on something particular
Type of:
absorption, concentration, engrossment, immersion
complete attention; intense mental effort

n special emphasis attached to something

Synonyms:
stress
Type of:
accent, emphasis
special importance or significance

v direct one's attention on something

“Please focus on your studies and not on your hobbies”
Synonyms:
center, centre, concentrate, pore, rivet
rivet
hold (someone's attention)
Types:
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absorb, engross, engulf, immerse, plunge, soak up, steep
devote (oneself) fully to
recall
cause one's (or someone else's) thoughts or attention to return from a reverie or digression
think
focus one's attention on a certain state
zoom in
examine closely; focus one's attention on
hear, listen, take heed
listen and pay attention
drink, drink in
be fascinated or spell-bound by; pay close attention to
incline
bend or turn (one's ear) towards a speaker in order to listen well
Type of:
cerebrate, cogitate, think
use or exercise the mind or one's power of reason in order to make inferences, decisions, or arrive at a solution or judgments
2

n maximum clarity or distinctness of an image rendered by an optical system

“in focus
“out of focus
Type of:
distinctness, sharpness
the quality of being sharp and clear

n maximum clarity or distinctness of an idea

“the controversy brought clearly into focus an important difference of opinion”
Type of:
clarity, clearness, limpidity, lucidity, lucidness, pellucidity
free from obscurity and easy to understand; the comprehensibility of clear expression

v put (an image) into focus

“Please focus the image”
Synonyms:
focalise, focalize, sharpen
Antonyms:
blear, blur
make dim or indistinct
Types:
refocus
put again into focus or focus more sharply
Type of:
adjust, correct, set
alter or regulate so as to achieve accuracy or conform to a standard

v bring into focus or alignment; to converge or cause to converge; of ideas or emotions

Synonyms:
concenter, concentre, focalise, focalize
Types:
refocus
focus anew
Type of:
adjust, align, aline, line up
place in a line or arrange so as to be parallel or straight
3

n a point of convergence of light (or other radiation) or a point from which it diverges

Synonyms:
focal point
Type of:
point
the precise location of something; a spatially limited location

n a central point or locus of an infection in an organism

“the focus of infection”
Synonyms:
focal point, nidus
Type of:
point
the precise location of something; a spatially limited location

v cause to converge on or toward a central point

Focus the light on this image”
Antonyms:
blur
to make less distinct or clear
Types:
refocus
focus once again; The physicist refocused the light beam"
Type of:
sharpen
make (images or sounds) sharp or sharper

v become focussed or come into focus

“The light focused
Synonyms:
focalise, focalize
Antonyms:
blur, dim, slur
become vague or indistinct
Type of:
adapt, adjust, conform
adapt or conform oneself to new or different conditions
4

n a fixed reference point on the concave side of a conic section

Type of:
point
the precise location of something; a spatially limited location