noun
Refers to the leading unit in a military advance or, by extension, the forefront of a movement or field.
彼の部隊は先鋒として敵陣に突入した。
His unit charged into the enemy camp as the advance guard.
その会社は業界の先鋒として新技術
The company introduced new technology as a vanguard of the industry.
noun
first competitor in a team match
Used in sports like kendo and judo for the athlete who competes in the opening bout of a team competition.
先鋒の選手が一本を取って、チームに勢いをつけた。
The first competitor scored an ippon and gave momentum to the team.