The crossword solution for the term 'GO SLOWLY (THROUGH)' is SEEP, which is a four-letter word. SEEP is an acronym for Subsurface Emission Environmental Protection, which is a process used to reduce the amount of pollutants that are released into the environment. It involves using a system of pipes and pumps to slowly release wastewater or other pollutants into the ground, allowing them to be naturally filtered before entering the environment.