Shalom (שָׁלוֹם) is a Hebrew word meaning well-being or hello.
As it does in English, it can refer to either peace between two entities (especially between man and God or between two countries), or to the well-being, welfare or safety of an individual or a group of individuals.
It is also used as a greeting to either say hello or farewell, and is found in many other expressions and names. Its equivalent cognate in Arabic is salaam and sälam in Ethiopian Semitic languages.
As per Jewishdictionary.org, the word shalom derives from the root ’shin-lamedh-mem’ (ש.ל.ם), which has cognates in many Semitic languages, and means completeness, fulfillment, wellbeing, harmony, a concept usually encapsulated by translation in the word well-being.
Check out these 10 tips to learning Hebrew shared by Mangolanguages.com.