Strong's G1411 — δύναμις (noun)
dunamis (doo'-nam-is) n.
1. force
2. (specially) miraculous power
3. (usually by implication) a miracle itself
{literally or figuratively}
[from G1410]
KJV: ability, abundance, meaning, might(-ily, -y, -y deed), (worker of) miracle(-s), power, strength, violence, mighty (wonderful) work 
Root(s): G1410 
Hebrew root: δύναμαι
Occurrences: 119