- extension
- ex|ten|sion [ ık`stenʃən ] noun ***▸ 1 extra time allowed▸ 2 telephone line▸ 3 extra part added▸ 4 something added to something long▸ 5 development of idea etc.▸ 6 stretching of body part▸ 7 increase in power▸ 8 special classes▸ 9 computer file name▸ + PHRASES1. ) count extra time you are given to finish a piece of work, especially at college:extension on: I'm going to ask for an extension on this paper.a ) extra time you are given to pay money that you owe:extension on: Will the bank give you an extension on the loan?b ) extra time you are given to use a particular legal document or right:a visa extensionextension to: Brady wants a two-year extension to his contract.2. ) count a telephone line that is one of several lines coming from a main line:What's your extension?I'm at extension 334.a new extension number3. ) count an extra room or rooms added to a building:The company is building an extension onto the side of the factory.extension to: Add a kitchen extension to your home.a ) a part of a road or railroad line added to the existing one:a proposed freeway extension4. ) count something you add to a long thin object to make it able to reach somewhere:This cord isn't long enough do you have an extension?a ) extensions plural long pieces of artificial hair that can be fastened to someone's hair to make it look longer5. ) count extension of something that develops from a particular custom, activity, idea, etc.:Business entertainment seems a natural extension of Japan's gift-giving culture.He sees local history as an extension of family history.6. ) uncount TECHNICAL the action of stretching part of your body:His leg was now capable of full extension.7. ) singular or uncount an increase in the power of something:extension of: the further extension of state control8. ) uncount a set of courses provided by a college for people who are not able to go to classes at the college itself or are not able to go during the normal class times9. ) count COMPUTING the last part of the name of a computer file . For example, EXE and DOC are extensions.by extensionused for explaining that a particular person or thing is affected by something only because they are connected to what you have just mentioned:She hates all businessmen and, by extension, me.
Usage of the words and phrases in modern English. 2013.