assalamoalikum wr wb,
nice of you to ask this question. Islam has five meanings. All of them are related to one another.
Submission, Surrender, Sincerity, Peace, and Obedience to the one true Creator, Allah (s.w.t).
The five pillars upon which this religion is based include: Shahadah (testimony tht there is no one worthy of worship except Allah and Muhammad (s.a.w) is the final Messenger), Salat (five daily prayers tht muslims perform all around the world), Fasting during the month of ramadan, Zakat (or charity), and finally Hajj (or pilgrimage to Allah's house......if you are able to)