To make, or become, something better.

Participant in experiment that is left untouched. To direct or influence the behavior of something.

In an appropriate or correct manner.

(of text or images on a computer screen) such that clicking on them with a mouse will produce a reaction..

Main; important. Distinctive or important point of something. have as prominent attribute or aspect.

Not of the same kind; unlike other things.

perceive intended meaning of.

causing something to occur or be done in particular way. To control exactly how something will be or act.

displaying or engaging in violence or aggression. action of fighting. To argue or quarrel with someone about something.

any of more or less distinct parts into which something is or may be divided or from which it is made up. Specific areas or regions within a larger place. To divide something into smaller parts.

place or type of surroundings where something is positioned or where event takes place. Places where some things happen or is located.

person taking part in sport or game. People who plays sports.

in existence or operation at current time. To be present, alive or real.

Someone who manages and checks a company's money.

situated on or near outside. Beyond the limits or edges of some place, thing. Area around or near something, such as a building. situated beyond boundaries of.