A wallchart is a helpful tool for displaying information in a clear and organized way. There are numerous synonyms for this word that can be used depending on the context and subject matter, including poster, graph, chart, diagram, infographic, timeline, and table. Posters are typically used for advertising or presentation purposes, while graphs, charts, and diagrams are often used for data visualization and analysis. Infographics are innovative presentations that combine information, visuals, and illustrations to convey complex ideas. Timelines provide a chronological overview of events, while tables are used to arrange data in a tabular format. Overall, using these synonyms will add variety and energy to any presentation or visual display.