Definition: Indexing is a process in computer science that involves manipulating data to make it more efficient or easier to work with. It can be done by using specific algorithms, such as searching for patterns in large amounts of data and sorting it based on certain criteria. In other words, indexing refers to the process of organizing and storing information in a structured way, often through a database system or software application. It allows users to easily find and access the information they need, regardless of its size or complexity.