Allah is an Arabic name, which means God in English. Arab Christians call their God “Father” which also translates to Allah in Arabic.
Islam is an Arabic word that means “submission” and “peace”. Muslim is also an Arabic word and refers to anyone or any creatures (including plants, animals, and any creatures that can and cannot be seen) who fully submits to Allah. Only those fully submitted to Allah can realize true peace. After the Old and New Testament, Allah sent down the Qur’an as a last gift to humanity. One should seek to learn more only after thoroughly reading the Qur’an.
May Allah guide whoever is seeking to know more about their Creator. Ameen.