: Actions like Zina (extramarital sex), theft, murder, and false testimony are grave sins. Additionally, specific social boundaries, such as proposing to a woman during her Iddah (waiting period), are legally restricted Wikipedia .
: The consumption of pork, alcohol, and meat not slaughtered according to Islamic rites is strictly forbidden according to the Practical Law Guide . IDK - HARAM
: The most serious of all prohibitions is Shirk , or associating partners with God, which strikes at the heart of Tawhid (monotheism). The Dual Nature of "Haram" : Actions like Zina (extramarital sex), theft, murder,