The most common and most likely answer to this crossword clue is the 8 letter word DYNAMISM
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More clues leading to the result DYNAMISM
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The cryptic/wordplay part
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What does DYNAMISM mean?
DYNAMISM noun- Any of several philosophical theories that attempt to explain the universe by an immanent force.
- Great energy, drive, force, or power; vigor of body, mind or personality; oomph or pizzazz
- Dynamic reality; active energy; continuous change, progress, or activity.