basis
US /ˈbeɪ.sɪs/
UK /ˈbeɪ.sɪs/

1.
base, fondement
the underlying support or foundation for an idea, argument, or process
:
•
The research provides a strong basis for the new theory.
La recherche fournit une solide base pour la nouvelle théorie.
•
Trust is the basis of any good relationship.
La confiance est la base de toute bonne relation.
2.
base, composant principal
the principal component of a mixture or compound
:
•
Water is the basis of most biological systems.
L'eau est la base de la plupart des systèmes biologiques.
•
The sauce has a tomato basis.
La sauce a une base de tomate.