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1. 数;数字
A number is a word such as 'two', 'nine', or 'twelve', or a symbol such as 1, 3, or
47. You use numbers to say how many things you are referring to or where something comes in a series.

2. (同 large 或 small 连用，表示约数)数量，数目
You use number with words such as 'large' or 'small' to say approximately how many things or people there are.

3. 若干/许多
If there are a number of things or people, there are several of them. If there are any number of things or people, there is a large quantity of them.

4. (排名)第…号
You can refer to someone's or something's position in a list of the most successful or most popular of a particular type of thing as, for example, number one or number two.

5. 总计;计有
If a group of people or things numbers a particular total, that is how many there are.

6. 电话号码
A number is the series of numbers that you dial when you are making a telephone call.

7. 一段音乐;一首歌曲;一支舞
You can refer to a short piece of music, a song, or a dance as a number .

8. 把…算作;把…归入
If someone or something is numbered among a particular group, they are believed to belong in that group.

9. 把…编号;给…标号
If you number something, you mark it with a number, usually starting at
1.

10. see also: opposite number;prime number;serial number

11. 寿命不长;时日无多
If you say that someone's or something's days are numbered, you mean that they will not survive or be successful for much longer.

12. …中的一员
One of your number is a member of your group.

13. (非法的)彩票赌博，博彩
If you refer to the numbers game ,the numbers racket, or the numbers, you are referring to an illegal lottery or illegal betting.

14. safety in numbers - see safety

1. an item of merchandise offered for sale

e.g. she preferred the black nylon number
this sweater is an all-wool number

2. a clothing measurement

e.g. a number 13 shoe

3. the property possessed by a sum or total or indefinite quantity of units or individuals

e.g. he had a number of chores to do
the number of parameters is small
the figure was about a thousand

Synonym: figure

4. the grammatical category for the forms of nouns and pronouns and verbs that are used depending on the number of entities involved (singular or dual or plural)

e.g. in English the subject and the verb must agree in number

5. a numeral or string of numerals that is used for identification

e.g. she refused to give them her Social Security number

Synonym: identification number

6. the number is used in calling a particular telephone

e.g. he has an unlisted number

Synonym: phone numbertelephone number

7. one of a series published periodically

e.g. she found an old issue of the magazine in her dentist's waiting room

Synonym: issue

8. a symbol used to represent a number

e.g. he learned to write the numerals before he went to school

Synonym: numeral

9. a short theatrical performance that is part of a longer program

e.g. he did his act three times every evening
she had a catchy little routine
it was one of the best numbers he ever did

Synonym: actroutineturnbit

10. a select company of people

e.g. I hope to become one of their number before I die

11. a concept of quantity involving zero and units

e.g. every number has a unique position in the sequence