The term "safe side" refers to taking precautions or actions that minimize risk, danger or loss. It is a cautious approach to ensure safety and prevent any potential harm from occurring. The phrase can be used in various contexts such as driving safely on the road by following traffic rules, wearing protective gear while performing certain tasks, being careful with personal information online, etc. In essence, taking precautions on the "safe side" means being prepared for any eventuality and avoiding potential hazards to ensure a safe outcome.