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)

A sketch or account of anything in words; a portraiture or representation in language; an enumeration of the essential qualities of a thing or species.

The act of describing; a delineation by marks or signs.

A set of characteristics by which someone or something can be recognized.

(biology) A scientific documentation of a specimen intended to reveal a new species by technically explaining its characteristics and particularly how it differs from other species.

The type description of the fungus was written by a botanist.