There are several synonyms for the term "grocery purchase" that you can use to add variety and depth to your writing. Some options include "grocery shopping," which refers to the act of visiting a grocery store or market to buy food and household supplies. "Grocery haul" is another synonym that is often used in social media and blog posts to describe the items that were purchased during a grocery shopping trip. "Food shopping," "grocery run," and "grocery pickup" are additional alternatives that can be used to describe the process of acquiring groceries. Ultimately, the synonym you choose will depend on the context and tone of your writing.