Basic and First-line

Basic adjective - Of or relating to the simplest facts or theories of a subject.

First-line and basic are semantically related. In some cases you can use "First-line" instead an adjective "Basic".

Nearby Words: base, basis, basically, basics, basicity

First-line adjective - Singled out from a number or group as more to one's liking.

Basic and first-line are semantically related. You can use "Basic" instead an adjective phrase "First-line".