Rectangular data is a type of data structure that is commonly used in computing. It is known for its simplicity, as it is organized in a two-dimensional table with rows and columns, much like a spreadsheet. Synonyms for rectangular data include tabular data, relational data, grid data, and matrix data. These terms all refer to the same structure, where each row represents a distinct observation and each column represents a distinct variable. The organization of this data makes it easy to analyze and manipulate using various software tools. Overall, whether you call it rectangular, tabular, relational, grid, or matrix data, it remains a fundamental and essential component in the world of data management and analysis.