Strong's #3173: megas (pronounced meg'-as)
 (including the prolonged forms, feminine megale, plural megaloi, etc.; compare also 3176, 3187); big (literally or figuratively, in a very wide application):--(+ fear) exceedingly, great(-est), high, large, loud, mighty, + (be) sore (afraid), strong, X to years.
Thayer's Greek Lexicon:
 ́ 
 
  megas 
 
 1) great
 
 1a) of the external form or sensible appearance of things (or of persons)
 
 1a1) in particular, of space and its dimensions, as respects
 
 1a1a) mass and weight: great
 1a1b) compass and extent: large, spacious
 1a1c) measure and height: long
 1a1d) stature and age: great, old
 
 1b) of number and quantity: numerous, large, abundant
 1c) of age: the elder
 1d) used of intensity and its degrees: with great effort, of the affections and emotions of the mind, of natural events powerfully affecting the senses: violent, mighty, strong
 
 2) predicated of rank, as belonging to
 
 2a) persons, eminent for ability, virtue, authority, power
 2b) things esteemed highly for their importance: of great moment, of great weight, importance
 2c) a thing to be highly esteemed for its excellence: excellent
 
 3) splendid, prepared on a grand scale, stately
 4) great things
 
 4a) of God' s preeminent blessings
 4b) of things which overstep the province of a created being, proud (presumptuous) things, full of arrogance, derogatory to the majesty of God
 
  Part of Speech: adjective
Relation: [including the prolonged forms, feminine megale, plural megaloi, etc., compare also G3176, G3187]
  Citing in TDNT: 4:529, 573
 
Usage:
This word is used 197 times:
Matthew 2:10: "star, they rejoiced with exceeding  great joy."
Matthew 4:16: "in darkness saw  great light; and to them which sat in"
Matthew 5:19: "shall do and teach them, the same shall be called  great in the"
Matthew 5:35: "for it is the city of the  great King."
Matthew 7:27: "and it fell: and  great was the fall of it."
Matthew 8:24: "And, behold, there arose  a great tempest in the sea,"
Matthew 8:26: "sea; and there was  a great calm."
Matthew 15:28: "unto her, O woman,  great is thy faith: be it unto thee"
Matthew 20:25: "exercise dominion over them, and  they that are great exercise authority upon them."
Matthew 20:26: "whosoever will be  great among you, let him be"
Matthew 22:36: "Master, which  is the great commandment in the law?"
Matthew 22:38: "is the first and  great commandment."
Matthew 24:21: "For then shall be  great tribulation, such as was not"
Matthew 24:24: "false prophets, and shall show  great signs and wonders; insomuch that,"
Matthew 24:31: "his angels with  a great sound of a trumpet, and they shall gather together"
Matthew 27:46: "hour Jesus cried  with a loud voice, saying, Eli, Eli,"
Matthew 27:50: "Jesus, when he had cried again  with a loud voice, yielded up the ghost."
Matthew 27:60: "rock: and he rolled  a great stone to the door of the"
Matthew 28:2: "And, behold, there was  a great earthquake: for the angel of the Lord"
Matthew 28:8: "with fear and  great joy; and did run to bring his disciples word."
Mark 1:26: "him, and cried  with a loud voice, he came out of him."
Mark 4:32: "herbs, and shooteth out  great branches; so that the fowls"
Mark 4:37: "And there arose  a great storm of wind, and the waves"
Mark 4:39: "ceased, and there was  a great calm."
Mark 4:41: "And they feared  exceedingly, and said one to another,"
Mark 5:7: "And cried  with a loud voice, and said, What have I to do with thee,"
Mark 5:11: "nigh unto the mountains  a great herd of swine feeding."
Mark 5:42: "of the age of twelve years. And they were astonished  with a great astonishment."
Mark 10:42: "over them; and their  great ones exercise authority upon them."
Mark 10:43: "whosoever will be  great among you, shall be"
Mark 13:2: "unto him, Seest thou these  great buildings? there shall not be left one stone upon another,"
Mark 14:15: "he will show you  a large upper room furnished and prepared: there"
Mark 15:34: "hour Jesus cried  with a loud voice, saying, Eloi, Eloi,"
Mark 15:37: "And Jesus cried  with a loud voice, and gave up the ghost."
Mark 16:4: "for it was very  great."
Luke 1:15: "For he shall be  great in the sight of the Lord, and shall drink"
Luke 1:32: "He shall be  great, and shall be called the Son of the Highest: and"
Luke 1:42: "And she spake out  with a loud voice, and said, Blessed art thou"
Luke 2:9: "shone round about them: and  they were sore afraid."
Luke 2:10: "for, behold, I bring you good tidings  of great joy, which shall be"
Luke 4:25: "six months, when  great famine was throughout all"
Luke 4:33: "devil, and cried out  with a loud voice,"
Luke 4:38: "wife's mother was taken with  a great fever; and they besought him"
Luke 5:29: "Levi made him  a great feast in his own house:"
Luke 6:49: "and the ruin of that house was  great."
Luke 7:16: "they glorified God, saying, That  a great prophet is risen up among"
Luke 8:28: "fell down before him, and  with a loud voice said, What have I to do with thee,"
Luke 8:37: "to depart from them; for they were taken  with great fear: and"
Luke 9:48: "among you all, the same shall be  great."
Luke 13:19: "it grew, and waxed  a great tree; and the fowls"