noun contest for superiority.
2. mastery ·noun a masterly operation; a feat.
3. mastery ·noun specifically, the philosopher's stone.
4. mastery ·noun the act process of mastering; the state of having mastered.
5. mastery ·noun superiority in war or competition; victory; triumph; preeminence.
6. mastery ·noun the position or authority of a master; dominion; command; supremacy; superiority.