Literal meaning:
* "I flipped a coin to decide who would go first."
* "The old coin was worth a small fortune."
* "He found a coin on the sidewalk."
Figurative meaning:
* "The phrase 'a penny for your thoughts' is a coin of the realm."
* "The new policy was a coin tossed into the debate."
* "Her decision was a coin flip, not a carefully considered choice."
Phrases:
* "To coin a phrase" - to create a new expression
* "To coin a word" - to invent a new word
* "Coin of the realm" - the standard currency of a country
Please note: The meaning of "coin" will depend on the context of the sentence.