Greek Definitions of Terms in Revelation 12:10, 11

Word used Greek Meaning
kingdom basileia "kingship, kingly power, royal dignity, the title and honour of king"
power exousia "authority"
accuser katagoria "one who speaks publicly against"
As a noun it refers to one who brings a suit into a court of law. In its verb form it means "to place a formal, criminal charge against," "to bring charges in court"
overcame nikao "to come off superior in a judicial cause," "to prevail in a legal action"
testimony marturia "judicial evidence;" from martus, "a judicial witness"