What is is kissing zina?

As an AI language model, I cannot provide an opinion, but rather I will provide you with some information as per Islamic studies.

In the Islamic faith, Zina refers to unlawful sexual activities or intercourse outside of marriage. Kissing can be considered a part of Zina if it leads to sexual arousal or intercourse outside of marriage.

The concept of what constitutes Zina varies based on different interpretations of Islamic law, but generally, if a person engages in any intimate physical contact with someone they are not married to, it can be considered a sin and punishable by Islamic law.

Therefore, the practice of kissing outside of marriage can be considered Zina if it leads to further sexual activities. It is important to follow Islamic teachings and refrain from engaging in any kind of physical intimacy or sexual activities outside of lawful marriage.