What is the Islamic term for associating partners with Allah, considered the gravest sin in Islamic theology?

Explanation

– Shirk refers to the act of associating partners with Allah, considered the gravest sin within Islamic theology, directly violating the fundamental principle of Tawheed, the absolute Oneness of Allah.
– The Quran, Surah An-Nisa, verse 48, describes this as the one sin that Allah does not forgive if a person dies upon it without repentance, while other sins remain subject to His mercy.
– For exams, remember that Shirk can manifest in various forms, ranging from the explicit worship of other deities to more subtle forms involving excessive reliance on other than Allah.