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.

Stakes Race

Stakes Races are known as better class races, with higher purses and often accompanies by trophies.

Bute

Shortened word for phenylbutazone, the common non-steroidal medication legal at most racetrack.