boundary marker

noun
UK /ˈbaʊndəri ˈmɑːkə/
US /ˈbaʊndəri ˈmɑːrkər/

A thing that shows where one place ends and another begins.

The stone wall is a boundary marker between the two farms.


OTHER MEANINGS

2. A physical object placed to show the edge of a piece of land.

The surveyor set a boundary marker at each corner of the field.

3. Something that shows a limit or dividing point between two things.

The river acts as a natural boundary marker between the two towns.

4. A sign or symbol that indicates the end of an area.

They painted a white line as a boundary marker on the playground.