The term "A level" can refer to several different things, including academic qualifications, tests or assessments. Some synonyms for this term include advanced level, high school diploma, achievement test, entrance exam, and proficiency exam. The phrase is commonly used in reference to the British education system as a way to measure academic achievement and readiness for university-level education. In other contexts, "A level" may refer to a specific subject area such as mathematics, biology, or physics. Whatever the context, the term "A level" generally denotes a high level of proficiency or mastery in a particular area of study or discipline.