Strong's #1411: dunamis (pronounced doo'-nam-is)
 from 1410; force (literally or figuratively); specially, miraculous power (usually by implication, a miracle itself):--ability, abundance, meaning, might(-ily, -y, -y deed), (worker of) miracle(-s), power, strength, violence, mighty (wonderful) work.
Thayer's Greek Lexicon:
 ́ 
 
  dunamis 
 
 1) strength power, ability
 
 1a) inherent power, power residing in a thing by virtue of its nature, or which a person or thing exerts and puts forth
 1b) power for performing miracles
 1c) moral power and excellence of soul
 1d) the power and influence which belong to riches and wealth
 1e) power and resources arising from numbers
 1f) power consisting in or resting upon armies, forces, hosts
 
  Part of Speech: noun feminine
Relation: from G1410
  Citing in TDNT: 2:284, 186
 
Usage:
This word is used 120 times:
Matthew 6:13: "kingdom, and the  power, and the glory, forever."
Matthew 7:22: "name done many  wonderful works?"
Matthew 11:20: "wherein most of his  mighty works were done, because they repented"
Matthew 11:21: "for if the  mighty works, which were done in you, had been done"
Matthew 11:23: "for if the  mighty works, which have been done in thee, had been done"
Matthew 13:54: "man this wisdom, and  these mighty works?"
Matthew 13:58: "he did not many  mighty works there because of their unbelief."
Matthew 14:2: "dead; and therefore  mighty works do show forth themselves in him."
Matthew 22:29: "Scriptures, nor the  power of God."
Matthew 24:29: "heaven, and the  powers of the heavens shall be shaken:"
Matthew 24:30: "clouds of heaven with  power and great glory."
Matthew 25:15: "one; to every man according to his several  ability; and straightway took his journey."
Matthew 26:64: "of man sitting on the right hand  of power, and coming in"
Mark 5:30: "knowing in himself  that virtue had gone out of him, turned him about"
Mark 6:2: "that even such  mighty works are wrought by his hands?"
Mark 6:5: "there do no  mighty work, save that he laid his hands upon a few"
Mark 6:14: "from the dead, and therefore  mighty works do show forth themselves in"
Mark 9:1: "kingdom of God come with  power."
Mark 9:39: "no man which shall do  a miracle in my name, that"
Mark 12:24: "the Scriptures, neither the  power of God?"
Mark 13:25: "fall, and the  powers that are in heaven shall be shaken."
Mark 13:26: "the clouds with great  power and glory."
Mark 14:62: "sitting on the right hand  of power, and coming in the"
Luke 1:17: "him in the spirit and  power of Elijah, to turn the hearts of the fathers"
Luke 1:35: "upon thee, and  the power of the Highest shall overshadow thee: therefore"
Luke 4:14: "returned in the  power of the Spirit into Galilee:"
Luke 4:36: "for with authority and  power he commandeth the unclean"
Luke 5:17: "and Jerusalem: and  the power of the Lord was present to heal them."
Luke 6:19: "to touch him: for  there went virtue out of him, and"
Luke 8:46: "for I perceive  that virtue is gone out of me."
Luke 9:1: "he called his twelve disciples together, and gave them  power and"
Luke 10:13: "for if the  mighty works had been done in Tyre and"
Luke 10:19: "over all the  power of the enemy: and nothing"
Luke 19:37: "voice for all  the mighty works that they had seen;"
Luke 21:26: "earth: for the  powers of heaven shall be shaken."
Luke 21:27: "in a cloud with  power and great glory."
Luke 22:69: "sit on the right hand of the  power of God."
Luke 24:49: "of Jerusalem, until ye be endued  with power from on high."
Acts 1:8: "But ye shall receive  power, after that the Holy Ghost is come upon"
Acts 2:22: "God among you  by miracles and wonders and signs,"
Acts 3:12: "on us, as though by our own  power or holiness we had made this man"
Acts 4:7: "they asked, By what  power, or by what name,"
Acts 4:33: "And with great  power gave the apostles witness of the"
Acts 6:8: "full of faith and  power, did great wonders and"
Acts 8:10: "is the great  power of God."
Acts 8:13: "and wondered, beholding the  miracles and signs which were done."
Acts 10:38: "with the Holy Ghost and  with power: who went about doing good, and"
Acts 19:11: "God wrought special  miracles by the hands"
Romans 1:4: "to be the Son of God with  power, according to the spirit of holiness, by"
Romans 1:16: "of Christ: for it is  the power of God unto salvation to every one"