1. The act of making coins. This is the more traditional meaning of the word.
2. A new word or phrase that is invented and used. This is a more modern and figurative usage of the word.
It's important to understand the context in which the word is used to determine the correct meaning.
For example:
* "The coinage of the new dollar bill was a massive undertaking." (This refers to the act of making the coins)
* "The phrase "Netflix and chill" is a relatively new coinage." (This refers to a new word or phrase)
If you can provide more context about how the word is being used, I can give you a more specific answer.