The phrase "lose edge" refers to a decline in competitiveness or quality. Antonyms for this phrase could include "gain traction", "improve performance", "revitalize", "rejuvenate", "strengthen", "excel", "dominate", "outperform", "maintain superiority", or "reclaim top status". These words all convey a sense of forward movement and improvement, rather than a loss or decline. By striving to gain traction and maintain a competitive edge, individuals and organizations can continue to improve and succeed in their respective fields. In contrast, losing edge represents a setback that can be avoided through sustained effort and a focus on performance improvement.