# demarcation

/ˌdimɑɹˈkeɪʃən/ (US) · /dɪmɑːkˈeɪʃən/ (UK)

Source: https://englishreference.com/word/demarcation
Updated: 2026-08-27

## Senses

### 1. a physical boundary

noun · CEFR C1 · Formal

a clear line or border that separates two different areas of land.

For teachers: the act of marking off a physical boundary or the limit itself, often established by political or military agreement.

- The river serves as a natural demarcation between the two countries.
- Following the ceasefire, both nations agreed to a strict demarcation of the border to prevent further territorial disputes.

Usage: Often used with the preposition 'between' or 'of'.

### 2. a conceptual distinction

noun · CEFR C1 · Academic · Formal

a clear difference or limit between two ideas, jobs, or groups.

For teachers: a strictly defined separation or distinction between different categories, roles, or concepts.

- There is a clear demarcation of responsibilities between the two departments.
- The new policy lacks a sharp demarcation between professional duties and personal time, leading to employee burnout.

Usage: Commonly appears in the phrase 'line of demarcation'.

## Examples

- The white line on the road is a clear demarcation of the lane.
- The new fence served as a physical demarcation between the two neighboring properties, ending years of boundary disputes.
- The treaty established a strict demarcation of the border, ensuring that both nations could exercise sovereignty over their respective territories without further conflict.

---

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.