First-line and First

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

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

First adjective - Coming before all others in time or order.

First-line and first are semantically related. Sometimes you can use "First-line" instead an adjective "First".

Nearby Word: firstly