the leading units moving at the head of an army陸軍の先頭に立って移動する先導部隊陣頭
any creative group active in the innovation and application of new concepts and techniques in a given field (especially in the arts)ある特定の分野(特に芸術)において新しい概念と技術の革命や応用した、グループのあらゆる創造活動前衛派
the position of greatest importance or advancement; the leading position in any movement or field; "the Cotswolds were once at the forefront of woollen manufacturing in England"; "the idea of motion was always to the forefront of his mind and central to his philosophy"最も大きな重要性または進歩の状況陣頭