What dictionary did you use?
BTW, my dictionary says, amongst other things,
1. O interj. An exclamation used in direct address, especially in earnest or solemn appeal, as in
O Lord!
O my countrymen!
An exclamation of surprise, disappointment, fear, longing, etc.:
O dear!
O Mr. "maouse" is wrong again!
O to consign astrology to limbo!
3. O and oh are sometimes used indiscriminately,
but O is the generally accepted form for direct address.
O is always capitalized but never directly followed by a punctuation mark.
Oh is capitalized at the beginning of a sentence and is followed by a comma or an exclamation mark, as in
Oh! How could you?
Oh, and by the way.........
I trust the above helps. |
