Definition of frontline
- frontline ambulances
if I'm having brain surgery, I want it done at a frontline hospital
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'frontline.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
These researchers are on the front line of defense against cancer.
She has been working on the front lines to educate the poor.
: an area where soldiers are fighting
: the most important and active position in a job or field of activity
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