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\ ˈbī-ˌin 
\
\ plural buy-ins
Definition of buy-in
: acceptance of and willingness to actively support and participate in something (such as a proposed new plan or policy)
Without buy-in from his troops, Gruden's just another tuned-out coach.— Tim Keown Probably the biggest challenge is to increase teacher buy-in. Some worry that Khan's methods are too untested. Others are more blunt, saying he wants to replace teachers with computers.— Kayla Webley
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Time Traveler for buy-in
The first known use of buy-in was in 1968
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