"Satan" is from Hebrew שָׂטָן (sāṭān), "obstacle," "enemy," "slanderer," "adversary."

"Satan" is literally translated "to be hostile," "accusation."

"Satan" in the synodal translation is the Greek "devil."

 "Satan" is a characterization of the worldview and lifestyle of a person who is opposed to the Will of God, His Covenants as expressed in the Ten Commandments and the Gospel Teachings of Jesus Christ and His Apostles.

 "Satan" is an "enemy" of the Truth, a "deceiver," a "false accuser," a "slanderer," i.e., any person who antagonizes, opposes" the Will of God and his God-given conscience.

"Satan" is any person who incites, seduces others to violate God's Commandments, any form, method of human action, the essence of which is expressed in opposition to God.

Translated with DeepL.com (free version)