Rabbit
Also known as a pacemaker; this is a horse with no expected chance of winning but is used to prompt a quick pace on the front end of the race to the benefit of a stablemate who is a closer.
Daily Double
A wager on two consecutive races on the card where bettors have to pick both winners.
Paddock
The area where horses gather before the race to be saddled and paraded for the public.

