| compulsory |
required or necessary. |
| eloquent |
using words well, in a way that others enjoy hearing or reading. |
| installation |
the act of installing or condition of being installed. |
| kin |
the members of an extended family together; relatives. |
| momentary |
lasting only an instant. |
| patent |
a government grant that gives someone the right to make, use, or sell an invention. A patent is given for a certain number of years. |
| psychology |
the study or science of the mind and of the ways that people feel and act. |
| reckon |
to count or estimate; figure. |
| reduction |
the amount by which a thing has been lessened or reduced. |
| restraint |
the act or process of holding oneself back or holding another back. |
| significance |
great value; importance. |
| solitude |
the condition of living or being by oneself. |
| tantalize |
to tease or torment with the sight or prospect of something desirable but unattainable. |
| trend |
a general course, direction, or tendency. |
| vat |
a very large barrel, tub, or tank, used for holding liquids. |