# asynchronous

/ˈeɪˈsɪŋkɹənəs/ (US) · CEFR C1 · Adjective

Source: https://englishreference.com/word/asynchronous
Updated: 2026-05-19

## Definition

describing a process where different parts of a system do not have to happen at the same time. You use this when one task can start before another one finishes.

For teachers: relating to a process or system where events occur independently of a shared clock signal or sequence. In computing, it describes operations that do not block the execution of other tasks.

## Examples

- The website uses asynchronous loading to make the page faster.
- Modern web applications often use asynchronous communication to allow the user to continue interacting with the interface while data is being fetched from the server.
- By implementing asynchronous processing, the server can handle thousands of concurrent requests without freezing the user interface, significantly improving the overall responsiveness of the application.

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