Synonym: annex, annexe, denotation, elongation, extension phone, extension service, file name extension, filename extension, lengthiness, prolongation, propagation, reference, telephone extension, university extension, wing. Similar words: extensive, tension, pension, dimension, dimensions, comprehension, extend, extent. Meaning: [ɪk'stenʃn] 
n. 1. a mutually agreed delay in the date set for the completion of a job or payment of a debt 2. act of expanding in scope; making more widely available 3. the spreading of something (a belief or practice) into new regions 4. an educational opportunity provided by colleges and universities to people who not enrolled as regular students 5. act of stretching or straightening out a flexed limb 6. a string of characters beginning with a period and followed by one to three letters; the optional second part of a PC computer filename 7. the most direct or specific meaning of a word or expression; the class of objects that an expression refers to 8. the ability to raise the working leg high in the air 9. amount or degree or range to which something extends 10. an additional telephone set that is connected to the same telephone line 11. an addition to the length of something 12. an addition that extends a main building.
n. 1. a mutually agreed delay in the date set for the completion of a job or payment of a debt 2. act of expanding in scope; making more widely available 3. the spreading of something (a belief or practice) into new regions 4. an educational opportunity provided by colleges and universities to people who not enrolled as regular students 5. act of stretching or straightening out a flexed limb 6. a string of characters beginning with a period and followed by one to three letters; the optional second part of a PC computer filename 7. the most direct or specific meaning of a word or expression; the class of objects that an expression refers to 8. the ability to raise the working leg high in the air 9. amount or degree or range to which something extends 10. an additional telephone set that is connected to the same telephone line 11. an addition to the length of something 12. an addition that extends a main building. 
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(31) The pub's got an extension tonight .
(32) Can I have extension 4332 please?
(33) The pub had an extension on Christmas Eve.
(34) Plans for our extension have been submitted for approval.
(35) The leg is now at full extension.
(36) He's got an extension to finish writing his thesis.
(37) We have an extension in the bedroom.
(38) That extension is busy right now. Can you hold?
(39) Extension of the injured arm was painful.
(40) The extension.doc indicates a word-processing file.
(41) Can I have extension 316(sentencedict .com), please?
(42) Do you know Mr Brown's extension number?
(43) Many Filipinos see the bases as an extension of American colonial rule.
(44) He will appeal to the state for an extension of unemployment benefits.
(45) How much progress have the builders made on the extension?
(46) The team appraisal is a logical extension of the individual appraisal interview.
(47) Those builders are a bunch of cowboys - they made a terrible job of our extension.
(48) We built an extension onto the school, so now we have two more classrooms.
(49) Our host ran a long extension cord out from the house and set up a screen and a projector.
(50) I must confess that I got my sums wrong - the house extension is costing a lot more than I expected.
(51) We've applied for planning permission to build an extension to the house.
(52) Some believe that the extension of higher education has leveled down university standards.
(53) Mr Crowther's extension is engaged at the moment; will you hold ?
(54) She has an extension in the kitchen and in the bedroom.
(55) My primary responsibility is to the pupils, and by extension to the teachers and parents.
(56) We really wanted to build a completely new hospital, but we didn't have the money, so this extension is a kind of halfway house.
(57) What's your extension number?
(58) They had built on a large extension at the back of the house.
(59) We had to get a variance before we could build the extension on our house.
(60) The extension will provide 600 square metres of new gallery space.
More similar words: extensive, tension, pension, dimension, dimensions, comprehension, extend, extent, extended, to some extent, intensity, mansion, expansion, external, density, intense, offensive, sensitive, defensive, consistent, sensitivity, comprehensive, consistently, comprehensible, version, mission, session, emission, invasion, decision.