1. drew quickly or roughly, often as a preliminary study
2. described briefly or gave a general outline of something

Examples

• She sketched the landscape in her notebook.
• The artist sketched several ideas before starting the painting.
• He sketched out his plan for the project.
• The detective sketched a rough map of the crime scene.
• She quickly sketched the main points of her argument.
• The architect sketched the building’s basic design.
• He sketched her portrait in just ten minutes.