ability, abundance, meaning, might(-ily, -y, -y deed), (worker of) miracle(-s), power, strength, violence, mighty (wonderful) work

Strong’s Dictionary of Greek Words:

Greek:
δύναμις
Transliteration:
dunamis
Phonic:
doo’-nam-is
Meaning:
from 1410; force (literally or figuratively); specially, miraculous power (usually by implication, a miracle itself)
KJV Usage:
ability, abundance, meaning, might(-ily, -y, -y deed), (worker of) miracle(-s), power, strength, violence, mighty (wonderful) work