The word "professional" refers to someone who is skilled and knowledgeable in a particular field or job. They are usually paid for their work, and they behave in a responsible and committed manner. Full definition
The lab is a tool to train future teachers, a site of professional development for teachers, and a fun place to learn science. (discovermagazine.com)
This is despite the fact that school districts invest considerable resources in professional development in an effort to improve teacher performance. (educationnext.org)
To do this, we work with professionals in various industries, including food manufacturing, restaurants and foodservice, grocery retail, healthcare, and nutrition education. (heart.org)