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TOEFL IELTS BNC: 2123 COCA: 3190

extension

Word family 
Related topics: Buildings, Telephone, telegraph, College, Computers
ex·ten·sion /ɪkˈstenʃən/ ●●○ S3 W3 noun  
1  making STH bigger or longer 使某物变大或变长 [countableC, uncountableU]BIG the process of making a road, building etc bigger or longer, or the part that is added 〔道路、建筑等的〕扩建；延长；增建部分
extension of
 the extension of the Jubilee underground line
地铁银禧线的延伸
2  extra rooms 额外房间 [countableC] British EnglishBrETBBBIG another room or rooms which are added to a building 〔建筑的〕扩建部分
extension to
 the planned extension to the National Museum
国家博物馆计划扩建的部分
 a loft extension
增建的阁楼
3  extra time 额外时间 [countableC usually singular]TIME/HOW LONG an additional period of time allowed for something 展期，延期
 Donald’s been given an extension to finish his thesis.
唐纳德获准延期完成他的论文。
 The pub’s got an extension tonight (=it will stay open longer than usual).
酒馆今晚延时关门。
4  include/affect more than before 扩大范围/影响 [singular, uncountableU]EFFECT/INFLUENCE the development of something in order to make it affect more people, situations, areas than before 扩大，延伸
extension of
 the extension of the copyright laws to cover online materials
著作权法向网络内容的延伸
 an extension of the powers of the European Parliament
欧洲议会权力的扩大
5  telephone 电话 [countableC]
a) TCTone of many telephone lines connected to a central system in a large building, which all have different numbers 分机
 Can I have extension 316, please?
能帮我接316号分机吗？
 Do you know Mr Brown’s extension number?
你知道布朗先生的分机号码吗？
b) TCTone of the telephones in a house that all have the same number 〔共用一个号码的〕分机
6  by extension SO/CONSEQUENTLYused when you want to mention something that is naturally related to something else 自然地，当然地〔用于提及另一自然相关的事物〕
 My primary responsibility is to the pupils, and by extension to the teachers and parents.
我主要是对学生负责，当然也对教师和家长负责。
Examples from the Corpus
by extension• Women lawyers, and by extension all professional women, looked for ways to balance family and work.
7  extensions [plural] long pieces of artificial hair that can be attached to your hair to make it look longer 〔用于接长头发的〕假发
hair extensions 接长的假发
Examples from the Corpus
hair extensions• An alternative would be to try hair extensions.
8. computer 计算机 [countableC] technical a set of three letters that follow the name of a computer file to show what it is. For example, the extension ‘.doc’ shows that a file is a written document. 〔三个字母组成的〕扩展名 ，类型名
9. electric wire 电线 [countableC] British EnglishBrE an extension lead 延长线 →4  See picture of 见图 ELECTRICS
10. stretch arm/leg 伸展手臂/腿 [countableC, uncountableU] the position of a part of the body when it is stretched, or the process of stretching it 伸展，舒展
11. university/college 大学/学院 [uncountableU]SEC part of a university or college that offers courses to people who are not full-time students 〔为非全日制学生开设的〕进修部
Examples from the Corpus
extension• The city is building an extension to the subway line.• A parser is an extension of a recogniser which assigns grammatical structure to the input.• It is just an extension of on-the-road campaigning.• an extension course• Two of the 16-bit slots have local bus extensions.• Some 24,000 more tickets will be made available by phone or in person for the three-day extension.• The system will also support message passing models such as parallel virtual machine and the high performance Fortran extensions of Fortran 90.• "I've been having some problems getting extension, " Clark said about his elbow.• Hello, I'd like extension 2807, please.• The twelve sales units in the London office were merely extensions of the New York parent operations.• You'll find the Picasso collection in the extension to the museum.• The extension to Inch Abbey has been approved completely but only part of the Ballyduggan extension has received approval.• the extension of credit to newer customers• Professor Lohman gave me a one-week extension on my paper.
extension of• What is needed is an extension of copyright laws to cover on-line materials.
extension number• He turned back to his desk, picked up the phone and jabbed an extension number.• He was already reaching for his phone, jabbing an extension number.• This can be achieved by dialling: followed by the four digit extension number.
From Longman Business Dictionary
extensionex·ten·sion /ɪkˈstenʃən/ noun [countableC]
1one of many telephone lines in a large building that all have different numbers, but that can be contacted through one central number
Put me through to extension 316, please.
What’s your extension number?
2an additional period of time given to someone to finish a job, repay money that they owe etc
You can request an automatic four-month extension of the due date for paying your tax.
3FINANCEBANKINGwhen lenders agree to lend money for longer than was originally agreed
Lenders have given the retailer a five-year extension of a $87.4 million credit line.
4LAWwhen a law, tax etc is changed to affect more things than before
an extension of the sales tax to various personal services and power utilities
5PROPERTYanother room or rooms that are added to a building
A 250-bedroom extension to the hotel will increase total capacity to 1,576 rooms.
6COMPUTING a set of three letters that follow the name of a computer file to show what it is. For example, the extension ‘.doc’ shows that a file is a written document
ex·ten·sion noun
Chinese
Syllable
Corpus

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