mastery
/ˈmæstəri/
noun
- Complete control or power over something or someone.
- The dictator's mastery over the country lasted for decades.
- She gained mastery of her fear through years of therapy.
- The general's mastery of the battlefield was unmatched.
- Great skill or knowledge in a particular subject or activity.
- After years of practice, she achieved mastery of the piano.
- The chef's mastery of French cuisine earned him a Michelin star.
- His mastery of the English language impressed everyone.