Japanese “passing grade” button emoji 🈴 is part of the Symbols and Alphanumeric Symbols emojis. On some systems it can be accessed by using :japanese_passing_grade_button:, :ja_passing_grade: or :u5408: shortcodes.
It was approved as part of Unicode in 2010 so it should be displayed properly on all devices.
Tags: Ideograph, Japanese, Japanese “passing grade” button, “passing grade” and 合