frontline

American  

[fruhnt-lahyn] / ˈfrʌntˌlaɪn /

Or front-line

adjective

1. located or designed to be used at a military front line.

   a frontline ambulance helicopter.

2. of, relating to, or involving the forefront in any action, activity, or field.

   a frontline TV reporter.

3. highly experienced or proficient in the performance of one's duties.

4. of or relating to essential work that depends on in-person interactions and may involve some risk, especially policing, healthcare, emergency services, public transit, grocery, warehouse, and delivery work.

   Congress is taking up a bill that would guarantee sick leave and hazard pay to frontline workers.

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Etymology

Origin of frontline

First recorded in 1910–15; front (in the military sense) + line ¹ ( def. )

Example Sentences

Speaking from mud-soaked dugouts, drone command centres, frontline observation posts and rehabilitation centres, nine Ukrainian soldiers have told the BBC about the civilians they once were, the soldiers they have become – and the toll the war has taken on them.

From BBC

In scenes that resemble a dystopian sci-fi movie, their widespread use has left swathes of frontline cities and fields entombed in webs of cable.

From Barron's

Dr. Michel Dugon, Head of the Venom Systems Lab at University of Galway and senior author of the study, said: "The findings could save lives. By pinpointing where dangerous scorpions are most likely to appear, health authorities can target awareness campaigns, train frontline medical staff, and focus community prevention in high-risk areas, especially protecting children. The approach can be applied wherever scorpions pose a threat, from Brazil to the Middle East and India."

From Science Daily

"The Russians have lost frontline communications in many places."

From BBC

Out on the frontline, in constant danger, Maxim agrees.

From BBC