A flowchart is a diagram that visually represents a process, system, or algorithm using various symbols, shapes, and arrows. Each symbol represents a different step or action in the sequence, such as a process (a rectangle), decision point (a diamond), or input/output (a parallelogram). Arrows connect these symbols to show the flow of the process, indicating the order in which steps should be performed. Flowcharts are widely used in fields like software development, business process modeling, and project management to simplify and communicate complex processes clearly and effectively.