Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun proficiency

2 senses of proficiency

Sense 1
proficiency -- (the quality of having great facility and competence)
       => competence, competency -- (the quality of being adequately or well qualified physically and intellectually)

Sense 2
proficiency, technique -- (skillfulness in the command of fundamentals deriving from practice and familiarity; "practice greatly improves proficiency")
       => skillfulness -- (the state of being cognitively skillful)