red pencil

A "red pencil" typically refers to a teacher's or editor's red pen used for marking corrections, comments, or edits on papers. The term symbolizes review, editing, and improvement, as the red ink highlights areas needing attention. It’s a tool for constructive feedback, helping students or writers understand where and how to enhance their work. Despite its primary association with education and editing, the phrase can also metaphorically imply critical evaluation or revisions process in various contexts.