Entity-relationship diagrams get their own emoji language with 📉, 📊, and 🔗 taking center stage. Use 📉📊🔗🧩 when discussing database design or system architecture in meetings or Slack threads. The combo 🔗📊🧩📁 works well when breaking down data flow or file relationships in presentations. For quick notes or project updates, 📊🔍🔗📁 captures analysis and connections crisply without extra fuss.