Hi! I mostly backup cashier so I am not as familiar with some of these as you would be as a GS expert.
I would say don't stress out over not using enough GS vocabulary. Definitely use them but know that the regular non-GS-specific Target vocab also count as key words as well.
The vocabulary is really just "retail speak." Everyone does it on a daily basis at the store. Words like: Team Members, Team Leaders, Executive Team Leaders, Store Team Leader, Guests, Apparel and Accessories, pushing, zoning, reshops, etc. Phrases like "driving sales," "reached goals," "educate," "team," "partner with," "metrics," "save 5%," "I would like to recognize this TM for____," "honoring the price," etc. Saying any Target-y lingo counts as a key word as long as you make sure you use the correct Target terms/phrases relevant to answering the question. For example, say "Guests" instead of "customers" when answering a question about service.
Relax and focus on answering the questions in a way that shows them you got the qualities and skills to lead. Be confident in your answers. Use the STAR method of answering questions.