The term 'GROWING VIGOROUSLY' can be summarized by two crossword solutions: 'LUSH' and 'THRIVING'. LUSH is an adjective that describes something that is rich, abundant, and flourishing. It is often used to describe a landscape or vegetation that is LUSH and green. THRIVING is another adjective that means to be successful and prosperous. It is often used to describe a business or organization that is doing well and growing rapidly. Together, these two words describe something that is growing vigorously and successfully.