"Full proficiency" means having complete skill, knowledge, or ability in a particular subject or task. It implies being highly competent or expert in that area. Full definition
The 2014 goal of full proficiency was quietly pushed aside through an exchange of paperwork between the states and the federal government. (jackjenningsdc.com)
Our goal is to empower educators with the tools they need to help every student achieve full proficiency in math. (mheducation.com)
The court rejected the contention that a violation exists until all districts achieve full proficiency in seven different subjects. (educationnext.org)