LEARNit Dictionary
mastery
noun
/ˈmɑːstəri/
UK
/ˈmæstəri/
US
1
great knowledge about or understanding of a particular thing
تسلط, مهارت کامل, استادی, چیرگی
synonym
command
2
control or power
تسلط, چیرگی
human mastery of the natural world
He struggled for mastery over his emotions.