1
a
: a military line formed by the most advanced tactical combat units
also
: front sense 2a(2)
b
: an area of potential or actual conflict or struggle
2
: the most advanced, responsible, or visible position in a field or activity
front·line
ˈfrənt-ˌlīn 
1
: relating to, being, or involved in a front line
frontline ambulances
2
: first-rate
frontline teachers
Examples of front line in a Sentence
Noun
These researchers are on the front line of defense against cancer.
She has been working on the front lines to educate the poor.
Adjective
if I'm having brain surgery, I want it done at a frontline hospital
Recent Examples on the Web
David Axe, Forbes.com, 30 Mar. 2025
Ukrainian troops have made marginal gains in Russia's Belgorod region, it has been reported, as a map shows the state of play along the front line.
—Ron Estes, MSNBC Newsweek, 29 Mar. 2025
Caroline Castrillon, Forbes.com, 9 Apr. 2025
The proliferation process would therefore involve a long period of instability because Russia would have an incentive to take preventive military action to stop frontline European states acquiring the weapons to deter it.
—Mark S. Bell, Foreign Affairs, 31 Mar. 2025
See All Example Sentences for front line
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Noun
Carefully driven to the front line by a remote operator seeing what the ’bot’s own front-facing camera sees, the UGV hooks the end of the coil onto existing wire—and then unspools the rest of the coil.
—David Axe, Forbes.com, 30 Mar. 2025
Ukrainian troops have made marginal gains in Russia's Belgorod region, it has been reported, as a map shows the state of play along the front line.
—Ron Estes, MSNBC Newsweek, 29 Mar. 2025
Adjective
Retail: While frontline retail positions see high turnover, management roles in this sector remain appealing to career changers.
—Caroline Castrillon, Forbes.com, 9 Apr. 2025
The proliferation process would therefore involve a long period of instability because Russia would have an incentive to take preventive military action to stop frontline European states acquiring the weapons to deter it.
—Mark S. Bell, Foreign Affairs, 31 Mar. 2025
See All Example Sentences for front line
Cite this Entry
“Front line.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/front%20line. Accessed 14 Apr. 2025.
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