Synonyms:
proficiency
Meaning: the quality of having great facility and competence
Usage examples
He was gaining some proficiency, however, he felt.
Then look at the proficiency in art of this ancient people.
Jacob Jemison, his second son by his last wife, who is at this time twenty-seven or twenty-eight years of age, went to Dartmouth college, in the spring of 1816, for the purpose of receiving a good education, where it was said that he was an industrious scholar, and made great proficiency in the study of the different branches to which he attended.