A watershed is the area separating two different drainage basins/river systems.
The Yalu River divides China and North Korea.
The young of a cow is a calf, regardless of the breed but if you wanted to be more specific you could call it a Highland calf or you could be more precise and say it is a Highland heifer calf or Highland bull calf.
It is called the highland dress.
It is the solidus line that separates the numerator from the denominator in a fraction
Brazilians call amazon river :river sea
horizon
highland
Its either called a venscule or a vinculum.
euphrat
thresh-hold
A highland boy is often referred to as a "Highlander." This term typically denotes someone from a mountainous region, particularly in Scotland. In a broader context, highland boys can also be called "mountain boys," reflecting their upbringing in high-altitude areas.
What did the Romans call the river thames