Vine's Expository Dictionary: View Entry
TDNT Reference: 3:905,466
κράτος krátos, krat'-os; perhaps a primary word; vigor ("great") (literally or figuratively):—dominion, might(-ily), power, strength.
The KJV translates Strong's G2904 in the following manner: power (6x), dominion (4x), strength (1x), mighty (with G2596) (1x).
force, strength
power, might: mighty with great power
a mighty deed, a work of power
dominion
Strong's Number G2904 matches the Greek κράτος (kratos),
which occurs 12 times in 12 verses
in the TR Greek.