* Preposition: This is the most common usage. It shows the position of something relative to something else.
* Adverb: It can describe a verb, adjective, or another adverb, indicating a circular motion or direction.
* Adjective: It can describe something as being circular or approximately a certain amount.
Here are some examples:
Preposition:
* The dog ran around the tree.
* We sat around the campfire.
Adverb:
* The car drove around the corner.
* He looked around for his keys.
* It's around 5 o'clock.
Adjective:
* The table is around 3 feet tall.
* They've been married for around 10 years.