from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A highly energetic or dynamic person.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun idiomatic A person who is especially
hard-working, high - achieving, ambitious, or active.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun someone whose career progresses rapidly
- noun a highly energetic and indefatigable person
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