The crossword solution for the term INTRODUCE GRADUALLY, WITH 'IN' is PHASE. The term 'PHASE' is used to describe a period of time in which something is gradually introduced or implemented. It is often used in the context of introducing a new product, policy, or process. For example, a company may introduce a new product in phases, meaning that it will be released in stages over a period of time. This allows the company to test the product and make any necessary changes before releasing it to the public.