set against
US /set əˈɡenst/
UK /set əˈɡenst/

1.
monter contre, opposer à
to cause someone to oppose or dislike someone or something else
:
•
His lies set the two friends against each other.
Ses mensonges ont monté les deux amis l'un contre l'autre.
•
The new policy set the employees against the management.
La nouvelle politique a monté les employés contre la direction.
2.
comparer à, opposer à
to compare or contrast something with something else
:
•
You need to set your current performance against your goals.
Vous devez comparer vos performances actuelles à vos objectifs.
•
The film sets modern life against traditional values.
Le film oppose la vie moderne aux valeurs traditionnelles.