extension

An extension is the act of getting more time, space, or length, like an extension of a deadline that gives you one more day to turn in a paper, or extensions that make your hair look longer.

The noun extension comes from the Latin word extendere, meaning “stretch out.” If you’re a great gymnast, you probably have amazing extension — flexible and long-reaching limbs. If someone meets your sister and assumes you will be exactly like her, you might say, "That's a stretch," meaning this person has, by extension, drawn conclusions about you which are somewhat true but not completely accurate.

Primary Meanings of extension

1.
n
act of expanding in scope; making more widely available
2.
n
a mutually agreed delay in the date set for the completion of a job or payment of a debt
3.
n
the spreading of something (a belief or practice) into new regions
4.
n
a string of characters beginning with a period and followed by one or more letters; the optional second part of a PC computer filename
5.
n
the most direct or specific meaning of a word or expression; the class of objects that an expression refers to
6.
n
an additional telephone set that is connected to the same telephone line
Full Definitions of extension
1

n act of expanding in scope; making more widely available

extension of the program to all in need”
Types:
show 6 types...
hide 6 types...
spread, spreading
act of extending over a wider scope or expanse of space or time
stretch
extension to or beyond the ordinary limit
circulation
the spread or transmission of something (as news or money) to a wider group or area
diffusion, dispersal, dispersion, dissemination
the act of dispersing or diffusing something
scatter, scattering, strewing
the act of scattering
decentralisation, decentralization
the spread of power away from the center to local branches or governments
Type of:
enlargement, expansion
the act of increasing (something) in size or volume or quantity or scope

n amount or degree or range to which something extends

“the wire has an extension of 50 feet”
Synonyms:
lengthiness, prolongation
Types:
coextension
equality of extension or duration
Type of:
longness
the property of being of long spatial extent

n an addition to the length of something

Synonyms:
elongation
Type of:
add-on, addition, improver
a component that is added to something to improve it

n an addition that extends a main building

Synonyms:
annex, annexe, wing
Types:
ell
an extension at the end and at right angles to the main building
Type of:
add-on, addition, improver
a component that is added to something to improve it

n act of stretching or straightening out a flexed limb

Antonyms:
flexion, flexure
act of bending a joint; especially a joint between the bones of a limb so that the angle between them is decreased
Types:
hyperextension
greater than normal extension
Type of:
stretching
act of expanding by lengthening or widening

n the ability to raise the working leg high in the air

“the dancer was praised for her uncanny extension
“good extension comes from a combination of training and native ability”
Type of:
property
a basic or essential attribute shared by all members of a class
dance
an artistic form of nonverbal communication
2

n a mutually agreed delay in the date set for the completion of a job or payment of a debt

“they applied for an extension of the loan”
Type of:
delay, hold, postponement, time lag, wait
time during which some action is awaited
3

n the spreading of something (a belief or practice) into new regions

Synonyms:
propagation
Type of:
airing, dissemination, public exposure, spreading
the opening of a subject to widespread discussion and debate

n an educational opportunity provided by colleges and universities to people who are not enrolled as regular students

Synonyms:
extension service, university extension
Type of:
didactics, education, educational activity, instruction, pedagogy, teaching
the activities of educating or instructing; activities that impart knowledge or skill
4

n a string of characters beginning with a period and followed by one or more letters; the optional second part of a PC computer filename

“most applications provide extensions for the files they create”
“most BASIC files use the filename extension .BAS”
Synonyms:
file name extension, filename extension
Type of:
string
a linear sequence of symbols (characters or words or phrases)
5

n the most direct or specific meaning of a word or expression; the class of objects that an expression refers to

“the extension of `satellite of Mars' is the set containing only Demos and Phobos”
Synonyms:
denotation, reference
Type of:
meaning, substance
the idea that is intended
6

n an additional telephone set that is connected to the same telephone line

Synonyms:
extension phone, telephone extension
Type of:
phone, telephone, telephone set
electronic equipment that converts sound into electrical signals that can be transmitted over distances and then converts received signals back into sounds

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