1. Making active and effective (as a bomb).
2. Stimulation of activity in an organism or chemical.
3. The activity of causing to have energy and be active

The trait of being active; moving or acting rapidly and energetically; SYN. activity.
The state of being active

ETYM Cf. French activité, Late Lat. activitas.
1. Any specific activity or pursuit.
2. The state of being active
> 3. An organic process that takes place in the body
4. A process existing in or produced by nature (rather than by the intent of human beings)
5. The trait of being active; moving or acting rapidly and energetically

The act of performing or executing; action

1. A sudden sharp hissing or sibilant sound
2. Energy, vim
3. Zip code

Activity contributing directly to the output of an organization; SYN. line duty.

The actions/ specific tasks (and means) that have to be undertaken/ provided to produce results. They summarise what will be undertaken by the project.