Noun

(activities)

The state or quality of being active; nimbleness; agility; vigorous action or operation; energy; active force; as, an increasing variety of human activities.

Something done as an action or a movement.

Something done for pleasure or entertainment, especially one involving movement or an excursion.

* {{quote-magazine, date=2013-06-07, author=David Simpson

, volume=188, issue=26, page=36, magazine=(The Guardian Weekly) , title= Fantasy of navigation , passage=Like most human activities , ballooning has sponsored heroes and hucksters and a good deal in between. For every dedicated scientist patiently recording atmospheric pressure and wind speed while shivering at high altitudes, there is a carnival barker with a bevy of pretty girls willing to dangle from a basket or parachute down to earth.}}

Use (of internet, playstation, bank account etc.).

Noun

(en noun)

(chiefly, US, informal) A person, especially a law enforcement officer, who is particularly effective in thwarting criminal activity and in bringing criminals to justice.

*1938 , Louther S. Horne, "Loesch Tells How to Beat Crime: A Need is Seen for Fearless Prosecutors," New York Times , 10 Apr., p. 120:

*:This corporation law background is less known than his record as a crime-buster .

*1976 , " Dipping into the Cookie Jar," Time , 2 Aug.:

Bit by bit, J. Edgar Hoover's image as an incorruptible crimebuster has crumbled since his death in 1972.

*2009 , Joel Rubinoff, " Swayze breathes life into killing" (TV review), Toronto Star , 22 Jan. (retrieved 22 Jan. 2009):

*:Swayze's ruthless crimebuster never hesitates—and as he plugs street scum full of bullets and pursues his own form of frontier justice with a hard, penetrating squint, we find ourselves rooting for a character who, in lesser hands, could be perceived as downright ugly.