extension

noun

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

   noun.time

   Examples

   They applied for an extension of the loan.

   Source: WordNet 3.0

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

   noun.act

   Examples

   Extension of the program to all in need.

   Source: WordNet 3.0

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

   noun.communication

   Synonyms propagation

   Source: WordNet 3.0

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

   noun.act

   Synonyms extension service university extension

   Source: WordNet 3.0

5. act of stretching or straightening out a flexed limb

   noun.act

   Antonyms flexion flexure

   Source: WordNet 3.0

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

   noun.communication

   Examples

   Most applications provide extensions for the files they create.

   Most BASIC files use the filename extension .BAS.

   Synonyms file name extension filename extension

   Source: WordNet 3.0

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

   noun.cognition

   Examples

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

   Synonyms denotation reference

   Source: WordNet 3.0

8. the ability to raise the working leg high in the air

   noun.attribute

   Examples

   The dancer was praised for her uncanny extension.

   Good extension comes from a combination of training and native ability.

   Source: WordNet 3.0

9. amount or degree or range to which something extends

   noun.attribute

   Examples

   The wire has an extension of 50 feet.

   Synonyms lengthiness prolongation

   Source: WordNet 3.0

10. an additional telephone set that is connected to the same telephone line

    noun.artifact

    Synonyms extension phone telephone extension

    Source: WordNet 3.0

11. an addition to the length of something

    noun.artifact

    Synonyms elongation

    Source: WordNet 3.0

12. an addition that extends a main building

    noun.artifact

    Synonyms annex annexe wing

    Source: WordNet 3.0

13. The act of extending or the state of being extended; a stretching out; enlargement in breadth or continuation of length; increase; augmentation; expansion.

    noun

    Source: webster1913