Definitions from Wiktionary (upstart)

▸ noun:  One who has suddenly gained wealth, power, or other prominence, but either has not received social acceptance or has become arrogant or presumptuous.
▸ noun:  The meadow saffron.
▸ adjective:  Acting like a parvenu.
▸ adjective:  Self-important and presumptuous.
▸ verb:  To rise suddenly, to spring
▸ Also see upstart

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