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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.


Etymology

Origin of frontline

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

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Zelensky and German Defence Minister Boris Pistorius last month received the first drone manufactured by QFI, a joint venture between German company Quantum Systems and Ukrainian firm Frontline Robotics.

From Barron's • Mar. 12, 2026

In the recently opened factory near Munich, the venture between Quantum Systems, a German drone maker, and Frontline Robotics, a Ukrainian military technology company, is the first Build With Ukraine project to go into production.

From The Wall Street Journal • Mar. 2, 2026

Frontline, one of the crude tanker companies, is up 37% this year.

From Barron's • Feb. 4, 2026

Frontline health and social care workers can get the vaccine through their employer.

From BBC • Jan. 8, 2026

How I’d phoned Frontline Security and spoken to the temp.

From "The London Eye Mystery" by Siobhan Dowd

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