extension - definition, thesaurus and related words from WordNet-Online

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Noun extension has 12 senses

extension - 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"
--₁ is a kind of delay, hold, time lag, postponement, wait
extension - act of expanding in scope; making more widely available; "extension of the program to all in need"
--₂ is a kind of expansion, enlargement
--₂ has particulars: spread, spreading; stretch
Derived form: verb extend₁
propagation, extension - the spreading of something (a belief or practice) into new regions
--₃ is a kind of dissemination, airing, public exposure, spreading
extension, extension service, university extension - an educational opportunity provided by colleges and universities to people who not enrolled as regular students
--₄ is a kind of education, instruction, teaching, pedagogy, educational activity
--₄ has parts: extension course
extension - act of stretching or straightening out a flexed limb
--₅ is a kind of stretching
Antonyms: flexion, flexure
--₅ has particulars: hyperextension
Derived form: verb extend₈
extension, filename extension, file name extension - a string of characters beginning with a period and followed by one to three 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"
--₆ is a kind of string
--₆ is a part of filename, file name, computer filename, computer file name
reference, denotation, extension - 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"
--₇ is a kind of meaning, substance
extension - 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"
--₈ is a kind of property; dance
extension, lengthiness, prolongation - amount or degree or range to which something extends; "the wire has an extension of 50 feet"
--₉ is a kind of longness
extension, telephone extension, extension phone - an additional telephone set that is connected to the same telephone line
--₁₀ is a kind of telephone, phone, telephone set
elongation, extension - an addition to the length of something
--₁₁ is a kind of addition, add-on, improver
annex, annexe, extension, wing - an addition that extends a main building
--₁₂ is a kind of addition, add-on, improver
--₁₂ is a part of building, edifice
--₁₂ has particulars: ell