# separator

/ˈsɛpəˌɹeɪtɝ/ (US) · /sˈɛpəɹˌeɪtɐ/ (UK) · CEFR B2 · Noun

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

## Definition

a person or thing that keeps two or more things apart. You use this to describe a physical object like a line or a divider, or a person who stops a conversation.

For teachers: a person or object that keeps two or more things apart or prevents them from mixing. Often used in technical contexts to describe a physical or logical boundary.

## Examples

- The line on the road is a good separator.
- The host acted as a polite separator, ensuring that the two groups of guests did not get too close.
- In chemical engineering, a separator is a device used to divide a mixture into its individual components based on physical properties like density or volatility.

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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.