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indices

Pronunciation: [ˈɪn.dɪ.seɪz]

Word

Learn how to use indices in a sentence: 9 audio examples across 3 meanings.

Context: “mathematics”

(noun) indices are the small numbers written above and to the right of a number. They tell you how many times to multiply that number by itself, like in 2² which means 2 times 2.

Example

In math class, we learned that 3² equals 9, because 3 is multiplied by itself 2 times.

Example

If you don’t understand indices, you might think 3² is just 3.

Example

What does the index in 4³ tell us to do with the number?

Context: “statistics”

(noun) indices can refer to a way of showing information by pointing out differences or changes, like when we track scores or performance over time. For example, a stock market index shows how well the market is doing.

Example

The stock market index showed a significant increase this week.

Example

The index for housing prices did not rise this month, which is unusual.

Example

How do we use indices to measure the economy's health?

Context: “indexes”

(noun) indices can also mean the lists or tables that tell where to find information in a book or database. This helps people quickly locate the facts they need.

Example

The library's index helped me find the book I was looking for very quickly.

Example

Without the index, I had a hard time finding the information in the huge encyclopedia.

Example

Can you show me how to use the index to find this topic?

How to pronounce indices

Pronunciation: [ˈɪn.dɪ.seɪz]

Listen and repeat as many times as you need.

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