Here's a breakdown:
* Apostrophe is a rhetorical device where a speaker directly addresses a person who is absent or dead, or an inanimate object or abstract concept, as if it were present and capable of understanding.
Examples:
* "Oh, death, where is thy sting?" (From the Bible)
* "Twinkle, twinkle, little star, How I wonder what you are." (A nursery rhyme)
* "O, mighty ocean, you have swallowed many a ship!"
Let me know if you'd like more examples or want to explore other figures of speech!