viivastoin
Viivastoin is a term used in Finnish typographic and notational contexts to describe the use of horizontal lines to indicate relationships, separations, or revisions within text, diagrams, and data presentations. The word combines viiva, meaning line, with a form that designates a method or practice, yielding a name for a particular notation technique.
Origins and scope of use are primarily found in editorial, educational, and design settings in Finnish-speaking
Applications of viivastoin span several domains. In publishing and proofreading, lines used for redaction or revision
Interpretation and variation of viivastoin depend on the context and the conventions of the publishing house,