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:
2 Kings 9:11: "came forth to the servants  of his lord: and one said unto him, Is all well? wherefore"
2 Kings 9:31: "Had Zimri peace, who slew  his master?"
2 Kings 10:2: "letter cometh to  you, seeing your master's sons are with you chariots"
2 Kings 10:3: "Look even out the best and meetest of your master's sons,  of your master's sons, and set him on"
2 Kings 10:3: "him on his father's throne, for  your master's house."
2 Kings 10:6: "ye the heads of the men  your master's sons, and come to me to Jezreel"
2 Kings 10:9: "I conspired against  my master, and slew him: but who slew"
2 Kings 18:23: "therefore, I pray thee, give pledges to  my lord the king of Assyria, and I will deliver"
2 Kings 18:24: "of one captain of the least  of my master's and put thy trust on Egypt"
2 Kings 18:27: "But Rab-shakeh said unto  them, Hath my master sent me to thy master, and to"
2 Kings 18:27: "them, Hath my master sent me to  thy master, and to these"
2 Kings 19:4: "the king of Assyria  his master hath sent to reproach the living God;"
2 Kings 19:6: "unto them, Thus shall ye say to  your master, Thus saith Be not afraid"
1 Chronicles 12:19: "saying, He will fall to  his master Saul to the jeopardy of our heads."
1 Chronicles 21:3: "times so many more as they  be: but, my lord the king, are they not all my lord's"
1 Chronicles 21:3: "the king, are they not all  my lord's servants? why then doth my lord require"
1 Chronicles 21:3: "my lord's servants? why  then doth my lord require this thing? why will he be"
1 Chronicles 21:23: "unto David, Take  it to thee, and let my lord the king do in his eyes:"
2 Chronicles 2:14: "to him, with thy cunning men, and with the cunning men  of my lord David thy father."
2 Chronicles 2:15: "the oil, and the wine, which  my lord hath spoken unto his servants:"
2 Chronicles 13:6: "is risen up, against  his lord."
2 Chronicles 18:16: "said, These have no  master; let them return therefore every man to his house in peace."
Nehemiah 3:5: "not their necks  of their Lord."
Nehemiah 8:10: "for this day is holy  unto our Lord: neither be ye sorry; for the joy"
Nehemiah 10:29: "all the commandments of the LORD  our Lord, and his judgments and his statutes;"
Job 3:19: "are there; and the servant is free from his master.  from his master."
Psalms 8:1: "A Psalm of David. O LORD  our Lord, how is thy name in all"
Psalms 8:9: "O LORD  our Lord, how excellent is thy name in all the earth!"
Psalms 12:4: "will we prevail; our lips are our own: who  is lord"
Psalms 45:11: "thy beauty: for he  is thy Lord; and worship"
Psalms 97:5: "at the presence of the LORD, at the presence  of the Lord of the whole"
Psalms 105:21: "He made  him lord of his house, and ruler of all his substance:"
Psalms 110:1: "of David. The LORD said  unto my Lord, Sit thou at my right hand, until"
Psalms 114:7: "Tremble, thou earth, at the presence  of the Lord, at the presence of the God"
Psalms 123:2: "of servants look unto the hand  of their masters, and as the eyes of a maiden the hand"
Psalms 135:5: "that the LORD is great,  and that our Lord is above all"
Psalms 136:3: "O give thanks  to the Lord of lords: for his mercy endureth forever."
Psalms 136:3: "O give thanks to the Lord  of lords: for his mercy endureth forever."
Psalms 147:5: "Great  is our Lord, and of great power: his understanding is infinite."
Proverbs 25:13: "to them that send him: for he refresheth  of his masters."
Proverbs 27:18: "shall eat the fruit thereof: so he that waiteth  on his master shall be honored."
Proverbs 30:10: "not a servant unto  his master, lest he curse thee, and thou be found guilty."
Isaiah 1:24: "Therefore saith  the Lord, the LORD of hosts, the mighty One of Israel, Ah,"
Isaiah 3:1: "For, behold,  the Lord, the LORD of hosts, doth take away from Jerusalem"
Isaiah 10:16: "Therefore  shall the Lord, the Lord of hosts, send among his fat ones leanness; and under"
Isaiah 10:33: "Behold,  the Lord, the LORD of hosts, shall lop the bough with terror: and the high ones"
Isaiah 19:4: "will I give over into the hand of a cruel  lord; and a fierce king over them, saith"
Isaiah 19:4: "king over them, saith  the Lord, the LORD of hosts."
Isaiah 21:8: "And he cried, A lion:  My lord, I stand continually upon the watchtower"
Isaiah 22:18: "shalt thou die, the chariots of thy glory shall be the shame  of thy lord's house."