As nouns the difference between frontline and borderland
is that frontline is while borderland is land near a border; marches.
As an adjective frontline
is (military) located at a front.
frontline
English
Alternative forms
* front-line (in attributive use); front line
Adjective
(-)
(military) Located at a front
Describing the most advanced or important
Derived terms
* frontliner