buy in
phr. v..phr. v.. to support an idea or plan because you believe it will be successful.
phr. v.. to accept or commit to a concept, policy, or proposal; often used in organizational contexts to describe stakeholder agreement.
I need the whole team to buy in to this new strategy.
The manager spent weeks explaining the changes to ensure everyone would buy in before the launch.
Without significant buy-in from the local community, the proposed infrastructure project is likely to face insurmountable political opposition.
often used with the preposition 'to' before the object of support.
this is a common 'business English' term; explain it as 'buying a share' in an idea to show you are invested in its success.
They bought in the plan.They bought into the plan.when followed by an object, the preposition 'into' or 'to' is usually required to show what is being supported.