Synonyms: activation
Definition: making active and effective (as a bomb)
Similar words: start, commencement, beginning
Definition: the act of starting something
Usage: he was responsible for the beginning of negotiations
Synonyms: activating, activation, energizing
Definition: the activity of causing to have energy and be active
Similar words: activity
Definition: any specific behavior
Usage: they avoided all recreational activity
Synonyms: activation
Definition: stimulation of activity in an organism or chemical
Similar words: stimulation
Definition: (physiology) the effect of a stimulus (on nerves or organs etc.)