keystone of (something)

Traducciones
основа (чего-то)
Trust is the keystone of any successful relationship.
Доверие является основой любых успешных отношений.
Definiciones
The keystone of something refers to the central or most important part of a system, structure, or concept that holds everything together and is essential for its stability and function.
Palabras
keystone

noun
замковый камень