buy into

US /baɪ ˈɪntuː/
UK /baɪ ˈɪntuː/
"buy into" picture
1.

adhérer à, croire en

to believe in an idea or accept a proposal, especially one that is not universally accepted

:
I don't buy into the idea that money can solve all problems.
Je n'adhère pas à l'idée que l'argent peut résoudre tous les problèmes.
Many people buy into the dream of owning a big house.
Beaucoup de gens adhèrent au rêve de posséder une grande maison.
2.

investir dans, acheter des parts dans

to purchase a share or interest in a business or venture

:
He decided to buy into the new startup.
Il a décidé d'investir dans la nouvelle startup.
Are you planning to buy into the family business?
Envisagez-vous d'investir dans l'entreprise familiale ?