The 🈚 emote, also known as "Squared CJK Unified Ideograph-7121," is a Japanese symbol that means "not free of charge" or "not available." It is often used in Japan to indicate that something is not included in a service or product, such as a meal or a hotel room. The symbol consists of the character "無" (pronounced "mu" in Japanese), which means "nothing" or "without," inside a square.