proficiency
US /prəˈfɪʃənsi/
・UK /prə'fɪʃnsɪ/
B2
other
- The state of being proficient; skill.
- A high degree of skill; expertise.
- A high degree of competence or skill; expertise.
noun
- Competence or skill in a particular field.
- High amount of skill or ability in something
Examples
a certificate for proficiency in English
a language proficiency test