Proficiency is defined as having expertise or being very skilled or knowledgeable in a certain subject.
When you score the highest of your entire school on a state math exam, this is an example of having a proficiency in math.
The state or quality of being proficient; competence.
From Latin proficientem, from proficere.
- Apart from decided signs of proficiency in mathematics, he showed no special ability.
- Its main object is to perfect the proficiency of players in certain departments of bowls proper.
- There again his proficiency, especially in physical science, was marked, and he was one of the young Russians chosen to complete their education in foreign countries.
- The rudiments of Latin he obtained at the grammar school of Montrose, after leaving which he learned Greek for two years under Pierre de Marsilliers, a Frenchman whom John Erskine of Dun had induced to settle at Montrose; and such was Melville's proficiency that on going to the university of St Andrews he excited the astonishment of the professors by using the Greek text of Aristotle, which no one else there understood.
- Abauzit at an early age acquired great proficiency in languages, physics and theology.