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upstart

1 ENTRIES FOUND:
upstart /ˈʌpˌstɑɚt/ noun
plural upstarts
upstart
/ˈʌpˌstɑɚt/
noun
plural upstarts
Britannica Dictionary definition of UPSTART
[count]
disapproving : a person who has recently begun an activity, become successful, etc., and who does not show proper respect for older and more experienced people
chiefly US : a newly successful person, business, etc. often used before another noun