| courtesy |
good, polite manners. |
| herd |
the common people; most people. The expression "He (or she) follows the herd" means that a person tends to do what everybody else does, like a cow in a herd, and does not think for himself or herself. |
| idea |
any thought or picture formed in the mind. |
| instrument |
a tool or mechanical device used for special work. |
| material |
anything used for building or making new things. Wood, metal, paint, and paper are examples of materials. |
| model |
a small copy of something. |
| oil |
a slippery liquid that comes from minerals, animals, plants, or chemicals. |
| protect |
to defend or keep safe from danger or harm. |
| pure |
not mixed with anything else; made of only one substance. |
| return |
to go back or come back. |
| rise |
to move up in direction. |
| shady |
in the shade. |
| thunder |
the loud noise you sometimes hear during a violent rain storm. |
| tree |
a plant that has a long main trunk and many branches. Trees usually grow quite tall. |
| turn |
to cause to move around a center point. |