Product optimization: Keywords
The first field you see when you come to the product page is the keyword field. Here you will find an input field for the main keyword and an input field for supporting keywords.

A: Main keyword
The main keyword is the most important keyword you want to be found on. We recommend optimizing your products for the product name by default if you sell well-known brands. Do you sell your own brand? Then you will need to do some more advanced keyword research.
B: Supporting keywords
Since the launch of RankBrain by Google, supporting keywords have become increasingly important. In this field you can enter keywords that support your main keyword. For example, if you want to rank for the keyword "Dentist", then under supporting keywords enter "Cavities", "Toothbrush", "Make an appointment" etc. These are keywords that reinforce the main keyword.