Explain the meaning of Islam!

What i’ve been told and have researched,, islam is an arabic word that means submission. the religious context means “submission to the will of god.” “islam” comes from the word “sal’m” which means peace. in their religion vs christianity.. The torah is their book/bible and that they believe there is a Jesus but he was just a messenger from god, not his son while christians believe jesus is god’s son. and they think of God differently than christians do. they believe that they can save themselves rather than what christians believe which is jesus/god save them. christians and catholicism (along with many other religions) use the term God and Allah (however God is used more frequently) while islam really only refers him/they to be Allah.

Ifeel like this is a very good quesyion