# data structure

CEFR C1 · Compound

Source: https://englishreference.com/word/data-structure
Updated: 2026-07-22

## Definition

a specific way of organizing and storing information in a computer so that it can be used efficiently. Different types are used for different tasks, like searching for a name or sorting a list.

For teachers: a specialized format for organizing, processing, retrieving, and storing data within a computer system. Common types include arrays, linked lists, and trees, each optimized for specific algorithmic operations.

## Examples

- Choosing the right data structure makes your program run much faster.
- The developer realized that switching from a list to a hash map data structure would significantly reduce the search time.
- Efficient software design often hinges on selecting a data structure that balances memory consumption against the computational complexity of required operations like insertion and deletion.

## Usage notes

- Often used in the plural when discussing computer science theory or software architecture.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.