* Kufr is defined as denial, denial, and denial, whether in the presence of God, or for any of his actions, names, attributes, or messages that he sent with the prophets and messengers, or doubts about any of the origins of faith, and as for polytheism, it means equality between God Almighty  The Prophet, may God’s prayers and peace be upon him, interpreted polytheism, as he said: (To make God a match, and He created you) [Sahih].

 * An unbeliever is called an unbeliever for those who do not believe in matters that must be believed in because they are considered a basic pillar, and a fixed and agreed upon pillar in Islamic law, as it is called for whoever does not believe in the sanctity of matters whose sanctity has been proven in Islamic law, so whoever denies Hellfire, Paradise, the Resurrection, and the Day of Resurrection  He is an infidel, likewise he who doubts the necessity of prayer, fasting, Hajj, and Zakat, and whoever denies the existence of God, the angels, the messengers, the prophets, and the heavenly books is an infidel, just as the denial of one of the above matters comes out of the religion, and it is worth noting that there is an infidel in the first place.  He is born on infidelity,

 * And there is the infidel, the apostate, who embraced Islam, then infidelity, and the apostate disbeliever has two types, namely: the infidel who is an apostate, meaning one who was born a Muslim then disbeliever, and an infidel who is an apostate who was born an unbeliever, then embraced Islam, then a disbeliever.

 * The polytheist uses the term polytheist to every person who believes in the existence of God as the god of this universe, with the presence of a partner for him in the creation of the sky, or the earth, or some of the creatures.  As gods like God.  The reward of the disbeliever and the polytheist There is no difference in the reward that God Almighty has prepared for both the infidel and the polytheist, for both of them are immortalized in the fire of Hell.  This is because they are equal in denying basic beliefs and pillars of the Islamic religion, which are represented in the oneness of God Almighty, as he is the Creator and Owner and has no partner, and therefore he is the only one deserving of absolute worship and obedience.