Great energy, drive, force, or power; vigour of body, mind or personality; oomph or pizzazz
Dynamic reality; active energy; continuous change, progress, or activity.
Any of several philosophical theories that attempt to explain the universe by an immanent force.
A deterioration or weakening
The result of being impaired
A downward revaluation, a write-down.
A disability or handicap
an inefficient part or factor.