Wow can i delete Product categories "Grocery"?

Here are the simple steps you need to follow:
Step1: Log into your WordPress site and access the Dashboard as the admin user.
Step 2: From the Dashboard menu, navigate to Products > Categories. If you want to delete the Grocery product category, you need to create at least another product category to make it the default one.
Step 3: Hover over the category you want to set as default, and click on “Make default” and then you can delete the the Grocery product category.
Hope it useful for you.
Regards,
Maason