Strong's #113: 'adown (pronounced aw-done')
 or (shortened) adon {aw-done'}; from an unused root (meaning to rule); sovereign, i.e. controller (human or divine):-- lord, master, owner. Compare also names beginning with "Adoni-".
Brown-Driver-Briggs Hebrew Lexicon:
 / 
  'âdôn / 'âdôn 
 
 1) firm, strong, lord, master
 
 1a) lord, master
 
 1a1) reference to men
 
 1a1a) superintendent of household,of affairs
 1a1b) master
 1a1c) king
 
 1a2) reference to God
 
 1a2a) the Lord God
 1a2b) Lord of the whole earth
 
 1b) lords, kings
 
 1b1) reference to men
 
 1b1a) proprietor of hill of Samaria
 1b1b) master
 1b1c) husband
 1b1d) prophet
 1b1e) governor
 1b1f) prince
 1b1g) king
 
 1b2) reference to God
 
 1b2a) Lord of lords (probably = "thy husband, Yahweh" )
 
 1c) my lord, my master
 
 1c1) reference to men
 
 1c1a) master
 1c1b) husband
 1c1c) prophet
 1c1d) prince
 1c1e) king
 1c1f) father
 1c1g) Moses
 1c1h) priest
 1c1i) theophanic angel
 1c1j) captain
 1c1k) general recognition of superiority
 
 1c2) reference to God
 
 1c2a) my Lord,my Lord and my God
 1c2b) Adonai (parallel with Yahweh)
 
  Part of Speech: noun masculine
Relation: from an unused root (meaning to rule)
Usage:
This word is used 335 times:
Isaiah 24:2: "as with the people, so with the priest; as with the servant,  so with his master; as with the maid, so with her mistress; as with the buyer,"
Isaiah 26:13: "O LORD our God,  other lords beside thee have had dominion over us: but by thee only will we make mention of thy name."
Isaiah 36:8: "therefore give pledges, I pray thee, to  my master the king of Assyria, and I will give"
Isaiah 36:9: "of one captain of the least  of my master's and put thy trust on Egypt"
Isaiah 36:12: "But Rab-shakeh said,  Hath my master sent me to thy master and to thee to speak"
Isaiah 36:12: "Hath my master sent me to  thy master and to thee to speak these"
Isaiah 37:4: "whom of Assyria  his master hath sent to reproach the living God,"
Isaiah 37:6: "them, Thus shall ye say unto  your master, Thus the LORD, Be not afraid"
Isaiah 51:22: "Thus saith  thy Lord the LORD, and thy God that pleadeth the cause of his people, Behold,"
Jeremiah 22:18: "they shall not lament for him, saying, Ah  lord! or, Ah his glory!"
Jeremiah 27:4: "And command them to say unto  their masters, Thus saith the LORD of hosts,"
Jeremiah 27:4: "Thus shall ye say unto  your masters;"
Jeremiah 34:5: "shall they burn odors for thee; and they will lament thee, saying, Ah  lord! for I have pronounced the word,"
Jeremiah 37:20: "Therefore hear now, I pray thee,  O my lord the king: let my supplication, I pray thee, be accepted"
Jeremiah 38:9: " My lord the king, these men have done evil in all that"
Daniel 1:10: "I fear  my lord who hath appointed"
Daniel 10:16: "and said unto him that stood before  me, O my lord, by the vision my sorrows are turned"
Daniel 10:17: "can the servant of this  my lord talk with this"
Daniel 10:17: "talk with this  my lord? for as for me, straightway there remained"
Daniel 10:19: "unto me, I was strengthened, and said,  Let my lord speak; for thou hast strengthened"
Daniel 12:8: "but I understood not: then said  I, O my Lord, what shall be the end"
Hosea 12:14: "his blood upon him, and his reproach  shall his Lord"
Amos 4:1: "which crush the needy, which say  to their masters, Bring, and let us drink."
Micah 4:13: "their gain unto the LORD, and their substance  unto the Lord of the whole earth."
Zephaniah 1:9: "those that leap on the threshold, which fill  their masters' houses with violence and deceit."
Zechariah 1:9: "Then said  I, O my lord, what are these? And the angel that talked with me said unto"
Zechariah 4:4: "with me, saying, What are these,  my lord?"
Zechariah 4:5: "be? And I said, No,  my lord."
Zechariah 4:13: "what these be? And I said, No,  my lord."
Zechariah 4:14: "anointed ones, that stand by  the Lord of the whole"
Zechariah 6:4: "that talked with me, What are these,  my lord?"
Zechariah 6:5: "from standing before  the Lord of all the earth."
Malachi 1:6: "honoreth his father, and a servant  his master: if then I be a father,"
Malachi 1:6: "is mine honor? and if I  be a master, where is my fear? saith the LORD"
Malachi 3:1: "and he shall prepare the way before  me: and the Lord, whom seek, shall suddenly"