Here's a breakdown:
1. Using the acronym after the full name
* Correct: This is the standard way to introduce an acronym. You state the full name first, then follow it with the acronym in parentheses.
* Example: "The World Health Organization (WHO) released a new report."
2. Using the acronym without ever stating the full name
* Potentially incorrect: This can be confusing for your audience, especially if the acronym is not widely known. It's generally best to introduce the full name first. However, there are exceptions:
* If the acronym is extremely common (e.g., NASA, FBI), it's acceptable to use it without the full name.
* If you're writing for a specific audience familiar with the acronym, it's okay to use it without explanation.
3. Using the acronym after a sentence
* Incorrect: This is generally considered poor grammar. It's better to place the acronym within the sentence itself, as in the examples above.
In summary:
* Always introduce the acronym by stating the full name first.
* Once the acronym is established, you can use it throughout the rest of your writing.
* If you're unsure whether an acronym is widely known, it's safer to use the full name or explain the acronym upon first use.