English dictionary

Info: This web site is based on WordNet 3.0 from Princeton University.

English noun: extension

1. extension (time) a mutually agreed delay in the date set for the completion of a job or payment of a debt

SamplesThey applied for an extension of the loan.

Broader (hypernym)delay, hold, postponement, time lag, wait

2. extension (act) act of expanding in scope; making more widely available

SamplesExtension of the program to all in need.

Broader (hypernym)enlargement, expansion

Narrower (hyponym)spread, spreading, stretch

3. extension (communication) the spreading of something (a belief or practice) into new regions


Broader (hypernym)airing, dissemination, public exposure, spreading

4. extension (act) an educational opportunity provided by colleges and universities to people who are not enrolled as regular students

Synonymsextension service, university extension

Broader (hypernym)didactics, education, educational activity, instruction, pedagogy, teaching

Part holonymextension course

5. extension (act) act of stretching or straightening out a flexed limb

Broader (hypernym)stretching

Narrower (hyponym)hyperextension

Antonymsflexion, flexure

6. extension (communication) a string of characters beginning with a period and followed by one or more letters; the optional second part of a PC computer filename

SamplesMost applications provide extensions for the files they create.
Most BASIC files use the filename extension .BAS.

Synonymsfile name extension, filename extension

Broader (hypernym)string

Part meronymcomputer file name, computer filename, file name, filename

7. extension (cognition) the most direct or specific meaning of a word or expression; the class of objects that an expression refers to

SamplesThe extension of `satellite of Mars' is the set containing only Demos and Phobos.

Synonymsdenotation, reference

Broader (hypernym)meaning, substance

8. extension (attribute) the ability to raise the working leg high in the air

SamplesThe dancer was praised for her uncanny extension.
Good extension comes from a combination of training and native ability.

Broader (hypernym)dance, property

9. extension (attribute) amount or degree or range to which something extends

SamplesThe wire has an extension of 50 feet.

Synonymslengthiness, prolongation

Broader (hypernym)longness

Narrower (hyponym)coextension

10. extension (artifact) an additional telephone set that is connected to the same telephone line

Synonymsextension phone, telephone extension

Broader (hypernym)phone, telephone, telephone set

11. extension (artifact) an addition to the length of something


Broader (hypernym)add-on, addition, improver

12. extension (artifact) an addition that extends a main building

Synonymsannex, annexe, wing

Broader (hypernym)add-on, addition, improver

Narrower (hyponym)ell

Part meronymbuilding, edifice

Based on WordNet 3.0 copyright © Princeton University.
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