Answer: mastery

AnswerCrossword Clue
MASTERYSuperiority.
masterya superior knowledge or skill
masteryill or knowledge that makes one master of a subject command
masterythe authority of a master dominion
MASTERYGrasp
MASTERYOutcome of practice
MASTERYTrainee's aim
MASTERYConsummate skill
MASTERYCommand
MASTERYWhat a winning golfer at Augusta has attained
MASTERYExpert know-how
MASTERYDominance.
MASTERYControl.
MASTERYThe upper hand.
MASTERYSkill.
MASTERYAscendancy.
MASTERYStrong grasp
MASTERYExpertise
MASTERYTotal control
MASTERYDomination