1: ἀντίχριστος
(Strong's #500 — Noun Masculine — antichristos — an-tee'-khris-tos )

can mean either "against Christ" or "instead of Christ," or perhaps, combining the two, "one who, assuming the guise of Christ, opposes Christ" (Westcott). The word is found only in John's epistles, (a) of the many "antichrists" who are forerunners of the "Antichrists" himself, 1—John 2:18,22; 2—John 1:7; (b) of the evil power which already operates anticipatively of the "Antichrist," 1—John 4:3 .

Revelation 132—Thessalonians 2Revelation 13Matthew 24:24Mark 13:22