Question

what do you mean by frontiers

Answer 1

There are many meanings of the word frontier.

But in geography a frontier means the piece of land which determines the farthest limits of a city, district, state or a country.

A frontier separates two territories from each other.

The geographical word frontier can be synonymously used with the word border.

Example -

Wagah border is located in India's north frontier.

Answer 2

the line where a country joints another border is known as Frontier