| brief |
short in length of time. |
| disagree |
to differ in opinion. |
| disappearance |
the act of disappearing or the fact of having disappeared. |
| emission |
the act of giving off or sending out. |
| ensure |
to make certain; cause to be a certainty. |
| flatten |
to squash or compress. |
| haste |
speed or hurry. |
| mutate |
to display or cause to display a physical trait or characteristic that is different from one's parent or parents as a result of a change within a gene or chromosome. |
| necessity |
a person or thing that is needed. |
| neutral |
not taking any side in an argument or contest. |
| promotion |
a raise to a higher grade or position. |
| relative |
a person who belongs to the same family as someone else. |
| scuffle |
to take part in a brief, confused fight. |
| skill |
the power or ability to perform a task well, especially because of training or practice. |
| slavery |
the owning of people by other people; bondage. |