Definition of extension

You can enter up to 15 letters and use up to 2 wildcards in the search. Use question mark (?) for wildcard searches.
Word Finders
Word Lists

Scrabble & Words with friends points

  • extension is a valid Scrabble US word with a point value of 16
  • extension is a valid Scrabble UK word with a point value of 16
  • extension is a valid Words with friends word with a point value of 18

Definition of extension

  • the most direct or specific meaning of a word or expression; the class of objects that an expression refers to (noun)

    Examples

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

    Synonyms

    1. denotation
    2. reference
  • an addition that extends a main building (noun)

    Synonyms

    1. annex
    2. annexe
    3. wing
  • amount or degree or range to which something extends (noun)

    Examples

    1. the wire has an extension of 50 feet

    Synonyms

    1. lengthiness
    2. prolongation
  • an addition to the length of something (noun)

    Synonyms

    1. elongation
  • the spreading of something (a belief or practice) into new regions (noun)

    Synonyms

    1. propagation
  • an additional telephone set that is connected to the same telephone line (noun)

    Synonyms

    1. extension phone
    2. telephone extension
  • an educational opportunity provided by colleges and universities to people who are not enrolled as regular students (noun)

    Synonyms

    1. extension service
    2. university extension
  • 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)

    Examples

    1. most applications provide extensions for the files they create
    2. most BASIC files use the filename extension .BAS

    Synonyms

    1. file name extension
    2. filename extension
  • act of expanding in scope; making more widely available (noun)

    Examples

    1. extension of the program to all in need
  • act of stretching or straightening out a flexed limb (noun)
  • a mutually agreed delay in the date set for the completion of a job or payment of a debt (noun)

    Examples

    1. they applied for an extension of the loan
  • the ability to raise the working leg high in the air (noun)

    Examples

    1. the dancer was praised for her uncanny extension
    2. good extension comes from a combination of training and native ability

See definition of extension in Merriam Webster