| addition |
the process of finding the total of two or more numbers. |
| asleep |
in a state of sleep. |
| border |
the outer part; edge. |
| earn |
to receive money for work that you have done. |
| force |
power, energy, or physical strength. |
| fuel |
anything such as wood or gasoline that is burned as a source of energy. |
| heap |
many things lying on top of each other; pile. |
| highway |
a large, important public road. |
| lab |
a short form of laboratory. |
| market |
a place where people buy and sell things. |
| pearl |
a smooth, hard, round object that is formed inside the shell of some sea animals. |
| pierce |
to pass or go through with or as if with something sharp; penetrate. |
| rate |
the speed or pace at which something is done. |
| skull |
the bones of the head and face that protect the brain. |
| station |
the place where a person or thing is normally found. |