Dictionary of Biblical Words:
This expression exclusively refers to the public return of Christ to this earth—commonly called “the Second Coming.” It is, however, often erroneously applied to the secret rapture of the Church (1 Thess. 4) that precedes it. The word occurs in 2 Thess. 2:8; 1 Tim. 6:14; 2 Tim. 1:10; 4:1, 8; Titus 2:13; and is generally used in connection with responsibility in walk and service. (See RAPTURE.)
Concise Bible Dictionary:
This is to be distinguished from Christ coming for His saints, though intimately connected with it, for He will bring them with Him. “When Christ, who is our life, shall appear, then shall ye also appear with him in glory” (Col. 3:4). Here it is the manifestation of Christ with His own, to be followed by the setting up of His kingdom and the apportionment of rewards to His saints (2 Cor. 5:10). The Lord’s servant is exhorted by His appearing and His kingdom to preach the word (2 Tim. 4:1-2). The saints will be associated with Christ in His judgments at His appearing (Jude 14-15). Christ will execute judgment on the Beast and the False Prophet and the western powers. Also on the Assyrian and the eastern powers that will oppress the Jews. The Jews and the ten tribes will be restored to their land in blessing, ushering in the Millennium. See ADVENT, SECOND.
Strong’s Dictionary of Greek Words:
Transliteration:
epiphaneia
Meaning:
from 2016; a manifestation, i.e. (specially) the advent of Christ (past or future)
KJV Usage:
appearing, brightness