| backward |
with the last part first; in a way that is the opposite of the usual way. |
| center |
the area or part of something that forms the middle. |
| class |
a group of people, things, or animals that are similar in certain ways; kind. |
| crystal |
a solid substance that has a repeating pattern of flat surfaces. |
| enormous |
very large in size or amount; huge. |
| excite |
to increase the feelings of; to increase energy. |
| friend |
a person whom you know well and like and who likes you. |
| glider |
a light aircraft without a motor that flies on air currents. |
| observe |
to notice or see. |
| platform |
a raised, level surface used as a place to work, perform, or speak to an audience. |
| race1 |
a sport or test of speed. |
| rate |
the speed or pace at which something is done. |
| talk |
to communicate by speaking. |
| uncle |
the brother of one's father or mother, or the husband of one's aunt. |
| wage |
(often plural) money paid at regular times to a person for doing work. |