Strong's #5599: o (pronounced o)
a primary interjection; as a sign of the vocative case, O; as a note of exclamation, oh:--O.
Thayer's Greek Lexicon:
̓͂
ō
1) the interjection, O!
Part of Speech: interjection
Relation: a primary interj.
Usage:
This word is used 17 times:
Matthew 15:28: "answered and said unto her, O woman, great is thy faith:"
Matthew 17:17: "Jesus answered and said, O faithless and perverse generation,"
Mark 9:19: "answereth him, and saith, O faithless generation, how long"
Luke 9:41: "Jesus answering said, O faithless and perverse generation,"
Luke 24:25: "said unto them, O fools, and slow of heart"
Acts 1:1: "treatise have I made, O Theophilus, of all that"
Acts 13:10: "And said, O full of all subtlety and all mischief,"
Acts 18:14: "matter of wrong or wicked lewdness, O ye Jews, reason would that I should bear with"
Acts 27:21: "the midst of them, and said, Sirs, ye should have hearkened"
Romans 2:1: "Therefore thou art inexcusable, O man, whosoever thou art that judgest: for"
Romans 2:3: "And thinkest thou this, O man, that judgest them which do such things,"
Romans 9:20: "Nay but, O man, who art thou that repliest against God?"
Romans 11:33: " O the depth of the riches both of the wisdom and knowledge of God!"
Galatians 3:1: " O foolish Galatians, who hath bewitched you, that ye should not obey"
1 Timothy 6:11: "But thou, O man of God, flee these things; and"
1 Timothy 6:20: " O Timothy, keep that which is committed to thy trust, avoiding profane and vain babblings, and"
James 2:20: "But wilt thou know, O vain man, that faith"