master's degree
— Noun
– English
~ an academic degree higher than a bachelor's degree but lower than a doctor's degree
mastering
— Noun
– English
~ becoming proficient in the use of something; having mastery of; "his mastering the art of cooking took a long time"
mastering
— Noun
– English
~ the act of making a master recording from which copies can be made; "he received a bill for mastering the concert and making 100 copies"
mastermind
— Noun
– English
~ someone who has exceptional intellectual ability and originality; "Mozart was a child genius"; "he's smart but he's no Einstein"