| Term | Definition |
| obstacles | something that blocks or stands in the way |
| pace | a step that is taken in walking or running |
| checkpoint | to test, examine, or compare to find out if something is correct or in good condition |
| inning | one of the divisions of a baseball game when each team comes to bat |
| musher | a person that leads a dog sled |
| cargo | the freight carried by a vehicle such as a ship or an airplane |
| foul | being outside the foul line |
| spectators | a person who watches an event but does not take part in it |
| play offs | where two teams play to win a game |
| respectable | worthy of respect |
| backstop | something that stops the ball from hitting the spectators |
| control | authority to direct or regulate |