mastery
mas|tery /m'ɑːstəri, m'æs-/
[N-UNCOUNT] oft N of n
If you show mastery of a particular skill or language, you show that you have learned or understood it completely and have no difficulty using it.
He doesn't have mastery of the basic rules of grammar...
[N-UNCOUNT] oft N of n
If you show mastery of a particular skill or language, you show that you have learned or understood it completely and have no difficulty using it.
He doesn't have mastery of the basic rules of grammar...