vanguard
noun
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the position of greatest importance or advancementβThis new battery represents the vanguard of the technology.βcutting edge
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the leading units moving at the head of an armyβThe vanguard took the brunt of the casualties in the battle.βvan
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any creative group active in the innovation and application of new concepts and techniques in a given field, especially in the artsβWe are the vanguard of this movement.βavant-garde