.front 'line
n [C usually singular]the place where fighting happens in a war
=
frontin/on the front line troops who had served in the front line at Magdeburg three miles behind the front linein the front linea) doing something that has not been done before
in the front line of the fight against cancerb) likely to be blamed for an organization's mistakes
>'front-lineadj [only before noun] front-line troops