num·ber1 /ˈnʌmbə $ -bər/ ●●● S1 W1 noun 1 number 数字 [countableC]HMN a word or sign that represents an exact amount or quantity 数，数字 → numeral, figure They wrote various numbers on a large sheet of paper.
Add all the numbers together.
an even number (=2,4, 6,8 etc) 偶数
an odd number (=1,3, 5,7 etc) 奇数
a round number (=one ending in 0) 整十数 A hundred pounds is a good round number.
I’m no good with numbers.
2 phone 电话 [countableC]HMNTCT a phone number 电话号码 My new number is 502–6155.
somebody’s home/office/work number I gave him my home number.
mobile/fax number What’s your mobile number?
Sorry, you have the wrong number.
3 in a set/list 在系列/清单中 [countableC]HMNPLACE a number used to show the position of something in an ordered set or list 号码；…号，第…号 Answer question number 4. → E number, No. 10, number one1
4 for recognizing SB/STH 用于识别某人/某物 [countableC]HMNB a set of numbers used to name or recognize someone or something 编号 model/account etc number What is your account number, please?
Press 1 to change the printer number.
Did you get the number (=registration number) of the car? → box number, PIN, serial number
5 amount 数量 [countableC, uncountableU]AMOUNT an amount of something that can be counted 数目；数量 SYN quantity the number of something The number of cars on our roads rose dramatically last year.
a number of something We have been friends for a number of years.
in number The condors have dwindled to an estimated sixty in number.
5 GRAMMAR 语法
Use a singular verb after the number of. the number of 之后用单数动词
The number of farmers is decreasing.
You are talking about the size of the group. 这是指群体的规模。
A number of options were suggested.
Use a plural verb after a number of. a number of 之后使用复数动词
You are referring to the group. 这是指群体本身。
You use a singular verb after the number of: the number of 之后用单数动词
nThe number of people is increasing.
You use a plural verb after a number of (=several): a number of 之后使用复数动词
nA number of issues were discussed.
6 numbers [plural]AMOUNT how many people there are, especially people attending an event or doing an activity together 〔尤指参加某一活动的〕人数 Can you give me some idea of numbers?
student/client etc numbers Visitor numbers increase in the summer.
The sheer weight of numbers (=large number of people) on stage made the performance more impressive.
7 APMAPTmusic 音乐 [countableC] a piece of popular music that forms part of a longer performance 一首流行乐曲 Madonna sang several numbers from her latest album. → production number► see thesaurus at music
8 magazine 杂志 [countableC] British EnglishBrETCN a copy of a magazine or newspaper printed on a particular date 〔杂志或报纸的〕期，号 SYN issue number of I was reading the latest number of ‘Surfing’.
back numbers (=old copies) of ‘The Times’
9 have somebody’s number informalUNDERSTAND to understand something about someone that helps you deal with them 对某人心中有数，摸透某人的底 Judy had always had his number.
have somebody’s number• You can tell Cara has his number. She knows exactly how to handle him when he's mad. 10 black/elegant etc (little) number informal a black, elegant etc dress or suit, especially a woman’s 〔尤指女性穿的〕黑色/高贵等的礼服 She was wearing a chic little number.
12 somebody’s number is up (also somebody’s number has come up) informal b) used to say that someone will die – used humorously 某人死期将到〔幽默用法〕 She told her husband she didn’t mind going when her number was up.
13 the numbers DGG a) information about something that is shown using numbers 数据 Chris, have you got the numbers yet?
14 by numbers if you do something by numbers, you do it in a basic way by following a set of simple instructions – used to show disapproval 按简单指令进行〔含贬义〕 The last thing we want is teaching by numbers.
15 do a number on somebody/something informal to hurt or damage someone or something badly 严重伤害[损坏]某人/某物 Tod really did a number on the old house. I don’t envy the new tenants.
do a number on somebody/something• Danny did a real number on the car.• It was a small piece of shrapnel, but it did a number on the left cheek of my hind end. 16. beyond/without number literaryLOT/LARGE NUMBER OR AMOUNT if things are beyond number, there are so many of them that no one could count them all 数不胜数 beyond/without number• The potential applications are almost without number.• It is to risk leaving out what religion is really about, rather like music without sound, or mathematics without numbers.• Zbigniew Shapira, not yet thirty, had talents without number.• They forgot the message times without number. 17 group of people 一群人 [uncountableU] formalFEW/NOT MANY a group of people 一群人 one/two/several etc of our/their number Only three of our number could speak Italian.
They wanted to choose a leader from among their own number.
18 grammar 语法 [uncountableU] technicalSLG the form of a word, depending on whether one thing or more than one thing is being talked about 数 ‘Horses’ is plural in number, while ‘horse’ is singular.
COLLOCATIONS – Meaning 1: a word or sign that represents an exact amount or quantity 数，数字 adjectives na lucky number (=a number you think gives you good luck)
Three is my lucky number.
an even number (=2,4, 6,8 etc) 偶数
nAll even numbers can be divided by 2.
an odd number (=1,3, 5,7 etc) 奇数
nYou can’t work in pairs if you’ve got an odd number of people.
a round number (=a number ending in zero) 整十数 A hundred is a nice round number.
na positive number (=a number that is more than zero)
Maths is easier if you are dealing with positive numbers.
na negative/minus number (=a number that is less than zero)
Can a negative number have a square root?
na prime number (=a number such as 13 that can be divided only by itself and 1)
After 7, what is the next prime number?
na cardinal number (=a number such as 1,2, or 3 that shows how many of something there are)
Numbers go on to infinity, so there is no last cardinal number.
nan ordinal number (=a number such as 1st, 2nd, or 3rd that shows where something comes in a series or list)
The children learn about position and ordinal numbers when they stand in a line.
na whole number (=a number that is not a fraction)verbs
nadd numbers together
Add the two numbers together and divide by three.
add up numbers (=add several numbers together) 把所有数字加起来。
nWrite all the numbers down, then add them up.
nsubtract one number from another
Subtract this number from the total.
nmultiply one number by another
What happens if you multiply a positive number by a negative number?
ndivide one number by another
You can’t divide a prime number by any other number, except 1.
COLLOCATIONS – Meaning 5: an amount of something that can be counted 数目；数量 adjectives a large/great number 很多，许多 A large number of children were running around in the playground.
a vast/huge number (=very large) 大量，许多 We’ve had a huge number of complaints.
a high number 数量高 There seems to be no reason for the high number of suicides.
a considerable/substantial/significant number (=quite a large number) 大量 He received a substantial number of votes.
nA considerable number of students left after the first year.
a good number (=quite a lot) 许多 He has written a good number of books for children.
a small number 少量，很少 The class had only a small number of students.
a low number 数量少 the low numbers of women involved in sports coaching
a limited number (=quite small) 有限的数量 A limited number of copies were printed.
a tiny number (=very small) 极少的数量 Only a tiny number of these animals remain in the wild.
a growing/increasing number 越来越多的数量verbs An increasing number of women are entering the profession.
increase the number of something 增加某事物的数量 As you improve, increase the number of times you do each exercise.
reduce the number of something 减少某事物的数量 We need to reduce the number of cars on the road.
a number increases/goes up/grows/rises 数量上升 The number of mobile phones has increased dramatically.
a number doubles (=becomes twice as big) 数量翻倍 The number of road accidents has doubled in the last ten years.
a number falls/drops/goes down/decreases/declines 数量下降 The number of new houses being built is falling steadily.
a number halves (=becomes twice as small) 数量减半phrases
nThe number of children failing at school has halved in recent years.
in large/increasing/limited etc numbers 大量地/越来越多地/数量有限地等 Birds nest here in large numbers.
any number of something (=a very large number of them) 大量的某事物 There have been any number of magazine articles about the celebrity couple.
bring the number to 25,120 etc 使数字达到25，120等 This will bring the number of jobs lost at the company to 85.
COMMON ERRORSDon’t say ‘a big number of people/things’. Say a large number of people/things.
不要说 ‘a big number of people/things’. 而要说 a large number of people/things.