Translation guide
To set boundaries, limits, or distinctions. In Japanese, this is expressed through verbs for drawing lines, setting borders, or defining differences, depending on whether the context is physical, abstract, or metaphorical.
To physically mark or draw a line that separates areas, such as on a map, field, or floor.
Literally 'draw a line'. The most common and natural way to express physically demarcating an area.
We drew white lines on the ground to demarcate the area.
Specifically 'draw a boundary line'. Used for clear, often official demarcation.
They drew a boundary line on the map to demarcate the territory.
To partition or divide into sections. Often used for land, lots, or rooms.
They demarcate the land into lots and sell them as residential areas.
To establish a clear difference or boundary between concepts, roles, or categories.
Metaphorical 'draw a line'. Used for setting boundaries between abstract things like responsibilities or definitions.
You should clearly demarcate between work and private life.
To distinguish or differentiate. Emphasizes recognizing the difference rather than actively creating a boundary.
Formal expression meaning 'to define a boundary'. Suitable for academic or legal contexts.
To define the limits of something, such as a project, authority, or discussion.
「線を引く」 is for physical lines; 「線引きする」 is for abstract boundaries. Using the wrong one can sound odd.
Draw lines in the parking lot.
Demarcate between public and private matters.
There is no single Japanese verb that covers all uses of 'demarcate'. Using a dictionary form like 「デマーケートする」 is not natural. Choose the expression based on context.
We need to clearly demarcate these two concepts.
It is difficult to demarcate the boundary between ethics and law.
We will demarcate the discussion to this issue.