CS stands for Computer Science, which is a field of study that focuses on the design, development, and use of computers and computer systems. The term CS can be broken down into three crossword solutions: ARIAS (5 letters), ARIA (4 letters), and SOFT (4 letters). ARIAS stands for Association for Research in Artificial Intelligence and Simulation, which is an organization that promotes research in artificial intelligence and simulation. ARIA stands for Accessible Rich Internet Applications, which are web applications that are designed to be accessible to people with disabilities. Finally, SOFT stands for Software-Oriented Fault Tolerance, which is a technique used to make software more reliable by detecting and correcting errors.