* Simon is mentioned three times in the listing of Jesus' disciples, but little else is known about him.
* Simon was one of the Eleven who met to pray together in Jerusalem after Jesus went back up into heaven.
* The term "zealot" may mean that Simon was a member of "the Zealots" which were a Jewish religious party that was very zealous in its support of upholding the Law of Moses while strongly opposing the Roman government.
* Or, "zealot" may simply mean, "the zealous one," referring to Simon's religious zeal.
(Translation suggestions: [How to Translate Names](en/ta-vol1/translate/man/translate-names))