soulmate
US /ˈsoʊl.meɪt/
UK /ˈsoʊl.meɪt/

1.
âme sœur
a person with whom one has a feeling of deep or natural affinity, especially in romantic relationships
:
•
She believes she has finally found her soulmate.
Elle croit avoir enfin trouvé son âme sœur.
•
They say everyone has a soulmate out there.
On dit que tout le monde a une âme sœur quelque part.