Emily Dickinson Lexicon

oh, interj. or exclaim. [Another spelling of O interjection, intended to express a longer or stronger sound.]

1. Expresses fondness of or endearment to the idea or thing which follows.
2. Intensifies sadness or disappointment associated with the idea or thing which follows.
3. Used to elicit the attention of an addressee [which addressee usually follows.]
4. Expresses earnest desire for action.
5. Used to express strong emotion.
6. Intensifies the word which follows.
7. Used to indicate understanding.