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:
Romans 1:20: "made, even his eternal  power and Godhead; so that they"
Romans 8:38: "nor principalities, nor  powers, nor things present, nor things to come,"
Romans 9:17: "have I raised thee up, that I might show my  power in thee,"
Romans 15:13: "in hope, through  the power of the Holy Ghost."
Romans 15:19: "Through  mighty signs and wonders, by the power of the Spirit"
Romans 15:19: "and wonders, by  the power of the Spirit of God; so that from"
1 Corinthians 1:18: "which are saved it is  the power of God."
1 Corinthians 1:24: "and Greeks, Christ  the power of God, and the wisdom of God."
1 Corinthians 2:4: "demonstration of the Spirit and  of power:"
1 Corinthians 2:5: "of men, but in  the power of God."
1 Corinthians 4:19: "of them which are puffed up, but the  power."
1 Corinthians 4:20: "word, but in  power."
1 Corinthians 5:4: "spirit, with the  power of our Lord Jesus Christ,"
1 Corinthians 6:14: "us by his own  power."
1 Corinthians 12:10: "To another the working  of miracles; to another prophecy; to"
1 Corinthians 12:28: "prophets, thirdly teachers, after that  miracles, then gifts of healings,"
1 Corinthians 12:29: "teachers? are all  workers of miracles?"
1 Corinthians 14:11: "I know not the  meaning of the voice, I shall be unto him that speaketh"
1 Corinthians 15:24: "all authority and  power."
1 Corinthians 15:43: "weakness; it is raised in  power:"
1 Corinthians 15:56: "is sin; and the  strength of sin is the law."
2 Corinthians 1:8: "that we were pressed out of measure, above  strength, insomuch that we"
2 Corinthians 4:7: "the excellency of the  power may be of God, and not"
2 Corinthians 6:7: "the word of truth, by  the power of God, by the armor"
2 Corinthians 8:3: "For to  their power, I bear record, yea, and beyond their power they were willing of themselves;"
2 Corinthians 8:3: "I bear record, yea, and beyond  their power they were willing of themselves;"
2 Corinthians 12:9: "for thee: for my  strength is made perfect in weakness. Most gladly"
2 Corinthians 12:9: "infirmities, that the  power of Christ may rest upon me."
2 Corinthians 12:12: "and wonders, and  mighty deeds."
2 Corinthians 13:4: "weakness, yet he liveth by  the power of God. For we"
2 Corinthians 13:4: "we shall live with him by  the power of God toward you."
Galatians 3:5: "the Spirit, and worketh  miracles among you, doeth he it by"
Ephesians 1:19: "exceeding greatness of his  power to us-ward who believe, according"
Ephesians 1:21: "and power, and  might, and dominion, and every"
Ephesians 3:7: "the effectual working of his  power."
Ephesians 3:16: "of his glory, to be strengthened  with might by his Spirit in"
Ephesians 3:20: "we ask or think, according to the  power that worketh in"
Philippians 3:10: "him, and the  power of his resurrection, and the"
Colossians 1:11: "Strengthened with all  might, according to his glorious power,"
Colossians 1:29: "working, which worketh in me  mightily."
1 Thessalonians 1:5: "but also in  power, and in the Holy Ghost,"
2 Thessalonians 1:7: "heaven with his  mighty angels,"
2 Thessalonians 1:11: "of his goodness, and the work of faith with  power:"
2 Thessalonians 2:9: "of Satan with all  power and signs and lying"
2 Timothy 1:7: "the spirit of fear; but  of power, and of love, and of a sound mind."
2 Timothy 1:8: "of the gospel according  to the power of God;"
2 Timothy 3:5: "but denying the  power thereof: from such turn away."
Hebrews 1:3: "by the word of his  power, when he had by himself purged"
Hebrews 2:4: "wonders, and with divers  miracles, and gifts of the Holy Ghost,"
Hebrews 6:5: "word of God, and  the powers of the world to come,"