Omega

Strong’s Dictionary of Greek Words:

Greek:
Ω
Transliteration:
omega
Phonic:
o’-meg-ah
Meaning:
the last letter of the Greek alphabet, i.e. (figuratively) the finality
KJV Usage:
Omega

Jackson’s Dictionary of Scripture Proper Names:

finality last letter of Greek alphabet

Potts’ Bible Proper Names:

The last; the end; the last letter of the Greek alphabet, Rev. 1:8. {Extremus; finis}