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\ ˈstärt-ˌəp 
\
\variants:
or startup
Definition of start-up
1 : the act or an instance of setting in operation or motion
2 : a fledgling business enterprise
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More Definitions for start-up
start-up
nounEnglish Language Learners Definition of start-up
: a new business
See the full definition for start-up in the English Language Learners Dictionary
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Time Traveler for start-up
The first known use of start-up was in 1845
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