in
dex
复数形式
indexes
1
the finger adjacent to the thumb, commonly used for pointing
- She wore a ring on her index finger.
- The doctor examined a cut on his index.
- He pointed to the diagram with his index.
- The child traced letters with her index finger.
- He pressed the button using his index.
2
指数, 指标
a system that provides the amount of prices, costs, etc. so that one can compare them with their previous value
- The Consumer Price Index (CPI) is used to measure inflation by comparing current prices to those of a base year.
消费者价格指数(CPI)通过将当前价格与基准年的价格进行比较来衡量通货膨胀。
- Investors closely monitor the stock market index to gauge the overall performance of the market.
投资者密切关注股市指数以衡量市场的整体表现。
- The cost-of-living index helps economists understand changes in the purchasing power of a population.
生活成本指数有助于经济学家了解人口购买力的变化。
- The housing price index revealed that home values have increased significantly over the past decade.
房价指数显示,过去十年中房屋价值显著增加。
- The company's performance index showed steady growth in sales and profitability over the last quarter.
公司的业绩指数显示上一季度销售和盈利能力稳步增长。
3
an alphabetical listing of topics, names, or terms with references to their locations, typically in a book or document
An index is a list of key terms, subjects, or topics mentioned in a book, usually found at the end. It is organized alphabetically and provides page numbers where each item can be found within the text. The index helps readers quickly locate specific information or topics in the book, making it easier to navigate large or detailed works. It is commonly used in nonfiction books, academic texts, and reference materials.
- The book includes an index for quick reference.
- She looked up the topic in the index.
- The index lists all the authors cited in the text.
- An index at the back of the textbook makes research easier.
- The index contained page numbers for key terms.
4
a value or ratio derived from observed data that reveals relative changes over time or between items
- The industrial production index rose last month.
- The energy consumption index fluctuated seasonally.
- The index of inflation reached a five-year high.
- Researchers created an index of biodiversity in the region.
- The happiness index compares well-being across countries.
5
a notation indicating the number of times a quantity is multiplied by itself
- In the equation x², 2 is the index.
- The index tells how many times the base is used as a factor.
- Powers are written with the index above the number.
- The formula uses indices to simplify calculations.
- A³ has an index of 3.