In the Name of Allah, the Most Beneficent, the Most Merciful
The word "Islam" is an Arabic word that means "submitting and surrendering your will to Almighty God".. Islam is the belief that there is only One God, whose proper name is Allah, which means " the God". The word comes from the same root as the Arabic word "salam", which means peace. Unlike the names used for other religions, such as Buddhism, Hinduism and Christianity, the name for the religion of Islam was both revealed by God and carries a deep spiritual meaning - only by submitting one's will to Almighty God can one obtain true peace both in this life and in the life hereafter
Islam teaches that all religions originally had the same essential message - which was to submit whole-heartedly to the will of God and to worship Him and Him alone. For this reason, Islam is not a new religion but is the same divinely revealed Ultimate Truth that God revealed to all prophets, including Noah, Abraham, Moses , Jesus, and finally to the Prophet Muhammad, the last messenger (peace and blessings be upon them). They all brought the same message: worship only God, and stop worshipping human beings and their ideas.
Now: If you believe there is only One God who should be worshiped, and no one/nothing else has that right but Him, and you believe Muhammad, peace be upon him, was a messenger who brought the same message as all the prophets before him, then you are basically a Muslim