Cutting through a problem or issue is often necessary in order to find the best solution. There are many synonyms for the phrase "cut through" that can achieve this goal, such as streamline, simplify, penetrate, carve, cleave, and pierce. When you streamline a process, you cut out unnecessary steps or aspects in order to make it more efficient. Simplifying a concept can allow for a clearer understanding. To penetrate something is to break through or get to the heart of the matter. To carve or cleave is to divide something skillfully, while piercing is to make a small hole or opening. Each of these synonyms can be used interchangeably with "cut through" to describe the process of breaking down complex problems in order to reach an optimal solution.