Japanese “free of charge” button (U+1F21A)

This emoji is a circle with a diagonal line through it, and it is stylized to look like a Japanese "no" symbol or "manji". In Japanese culture, the manji is a symbol of good luck and auspiciousness, but when flipped upside down, it can be seen as a symbol of protest or refusal, hence the "no" meaning. In the context of this emoji, it is often used to indicate that something is not available or prohibited, similar to the "not allowed" or "prohibited" signs in the Western world. It can also be used to express a negative response or to decline an offer. However, due to its association with the manji symbol, it is important to use this emoji with cultural sensitivity and awareness.