To keep in a limit of space,amount,or intensity of the subject such as the intensity of a movie if it is a Restricted movie it is for adults not children.
The restriction of space such as a private military or cemichal factory they have restricted areas.
The restriction of an amount such as the amount of candy you have. Definition: To keep a certain subject out of a certain area.
Definition: To keep a subject away by luring away.

external image blockorrestrictwebsites.pngAbove: The man is keeping you out of this area.

external image ht_warning_signs_1_jef_ssm_110523_wmain.jpgTo the left signs have been put up to keep people away.