| ancestor |
a person from whom one is descended and who lived several generations ago. |
| arise |
to appear; come into being. |
| clamp |
a device used to fasten, support, or press together two or more objects or pieces. |
| department |
a separate part of a large organization, such as a government, school, or business. |
| extension |
the act of making longer in size or length of time. |
| improvement |
a change that makes something better than it was. |
| involve |
to have as a necessary part or result; include. |
| loose |
not held back; free. |
| multiplication |
the act or process of increasing rapidly in number. |
| puff |
a short, strong burst of breath, air, smoke, or steam. |
| responsible |
expected to take care of particular duties and jobs. |
| thorough |
leaving nothing out; complete. |
| unfortunately |
used to express that an event being talked about is something unlucky or something that turned out badly. |
| visitor |
one who comes to see someone or something. |
| vote |
a formal expression of a choice in an election or other group decision. |