Proficiency in
Technically it is a good input - output conversion, but anywhere else you might say it is victory.
Proficiency in English
To make yourself understood To understand others To gain respect for yourself, your opinions and what you say.
How do you give proficiency test? You must have proficiency in english!
English proficiency in the Philippines is generally high, with English being one of the country's official languages and a primary medium of instruction in schools. However, proficiency levels can vary among individuals and regions. Efforts are being made to further improve English proficiency in the country to better prepare the workforce for global opportunities.
In general, proficiency refers to the competent use of any item.
Some measurement of your proficiency in something. Like how well your English is.
Some measurement of your proficiency in something. Like how well your English is.
collective task proficiency
Ashford university English proficiency exam
The abstract noun form of the adjective 'proficient' is proficiency.
I would rate my proficiency at a solid B.