The crossword solution for the term WALK SILENTLY is PAD, which stands for 'Progressively Accelerated Development'. This is a type of training program that focuses on developing skills and abilities over a period of time. It is often used in sports, business, and other areas where a person needs to improve their performance. The idea behind PAD is that by gradually increasing the difficulty of tasks, a person can become more proficient in a particular skill or activity.