As this seems to be a little slow I'll say that the Words on the Card are the indefinite article plus one other, and that the answer is exceedingly commonplace.
Is it time for the gentlest of hints?
So, next up is ABSTRACT with animal and vegetable connections
Well, let me think. Ah, I have it! Vegetable and Mineral with Abstract connections.
I'm going off to chez nous for a short break, so I may not login every day over the next 10 days.
Gladly hands over the stick of rock to Projoy!