extension

UK:^*^*UK and possibly other pronunciationsUK and possibly other pronunciations/ɪkˈstɛnʃ^ən/US:USA pronunciation: IPA and respellingUSA pronunciation: IPA/ɪkˈstɛnʃən/ ,USA pronunciation: respelling(ik sten′shən)

ex•ten•sion /ɪkˈstɛnʃən/USA pronunciation n.

[countable] an addition: added an extension to the house.
an increase in length of time, area, duration, or scope:[countable]an extension for filing our taxes.
Telecommunications an additional telephone that operates on a principal line:[countable]Pick up the extension in your room.
a program by which an institution, such as a university, provides instruction or other services away from the regular location:[countable]studying at an extension.

adj. [before a noun]

connecting two ends that would be otherwise too far away:an extension cord.
of or being a program by which a university provides instruction away from the regular location or outside regular hours:an extension course.

See -tend-.

ex•ten•sion (ik sten′shən),USA pronunciation n.

an act or instance of extending.
the state of being extended.
that by which something is extended;
an addition:a four-room extension to a house.
an additional period of time given one to meet an obligation:My term paper wasn't finished so I asked for an extension.
something that can be extended;
an extended object:a table with drop-leaf extensions.
range of extending;
degree of extensiveness;
extent:the extension of our knowledge.
Telecommunicationsan additional telephone that operates on the principal line.
Business[Com.]a written engagement on the part of a creditor, allowing a debtor further time to pay a debt.
Physicsthat property of a body by which it occupies space.
Anatomy
- the act of straightening a limb.
- the position that a limb assumes when it is straightened.
Surgerythe act of pulling the broken or dislocated part of a limb in a direction from the trunk, in order to bring the ends of the bone into their natural situation.
PhilosophyAlso called extent. [Logic.]the class of things to which a term is applicable, as "the class of such beings as Plato and Alexander'' to which the term "man'' is applicable. Cf. intension (def. 5).
Mathematicsa function having a domain that includes the domain of a given function and that has the same value as the given function at each point in the domain of the given function.
Sport[Manège.]the act of bringing or coming into an extended attitude.

adj.

Educationof or pertaining to extension courses.

Latin extēnsiōn- (stem of extēnsiō). See extensive, -ion
Middle English 1350–1400

ex•ten′sion•al′i•ty, ex•ten′sion•al•ism, n.
ex•ten′sion•al, adj.
ex•ten′sion•al•ly, adv.
ex•ten′sion•less, adj.

extension, +n.

[Computers.]one or more characters at the end of a filename, usually following a period, used to indicate the type of file.

Also called file extension.

Collins Concise English Dictionary © HarperCollins Publishers::

extension /ɪkˈstɛnʃən/ n

the act of extending or the condition of being extended
something that can be extended or that extends another object
the length, range, etc, over which something is extended; extent
an additional telephone set connected to the same telephone line as another set or other sets
a room or rooms added to an existing building
a delay, esp one agreed by all parties, in the date originally set for payment of a debt or completion of a contract
the property of matter by which it occupies space; size
- the act of straightening or extending an arm or leg
- its position after being straightened or extended
a steady pull applied to a fractured or dislocated arm or leg to restore it to its normal position
- a service by which some of the facilities of an educational establishment, library, etc, are offered to outsiders
- (as modifier): a university extension course
conservative extension ⇒ the class of entities to which a given word correctly applies: thus, the extension of satellite of Mars is the set containing only Deimos and Phobos

Etymology: 14th Century: from Late Latin extensiō a stretching out; see extend

'extension' also found in these entries (note: many are not synonyms or translations):

Alaska Peninsula - annexe - axon - bay - Beaufort scale - Conservative Judaism - denotation - Europe - expanse - extensional - extensive - extent - extrapolate - Hudson Bay - imperialism - intension - jib boom - leaf - limb - nerve fibre - overlap - ovipositor - pro- - protraction - ridge - samara - Scopus - spring balance - spur - suffragette - suffragist - swallowtail - tailpiece - telescope - thorn - topgallant - transfer - Transylvanian Alps - trough - uvula - abstract algebra - adiadochokinesia - adult education - age - algebraic extension - amplificatory - an - anadiplosis - ankle jerk - attribute

In Lists: Parts of a house, Pool and snooker terms, Vocabulaire , more...

Synonyms: lengthening, elongation, enlargement, prolonging, prolongation, more...

Collocations: a [loan, credit, payment, mortgage] extension, [asked, applied] for a [loan] extension, [an assignment, an essay, a project, a homework] extension, more...

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⇱ extension - WordReference.com Dictionary of English

extension