noun
a body of troops or police officers standing or moving in close formation.
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The soldiers marched in formation, with their shields forming a protective phalanx.
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The football team lined up in a phalanx to defend against the opposing team's offense.
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The group of friends formed a phalanx to make their way through the crowded concert.
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The company's legal team formed a phalanx to protect the company from any potential lawsuits.