This is the 1640th most frequent Russian word.
главный
Main; chief; principal.
Here, 'главный' conveys authority and leadership, as it describes an important, leading position: 'chief engineer'.
Он - главный инженер этой компании.
He is the chief engineer of this company.
Here, 'главный' specifies central focus or critical importance, as it defines the main or primary goal of the project.
Главная цель проекта - улучшение качества.
The main objective of the project is improving quality.
Here, 'главный' refers to the essential and foundational parts, central to the context which in this case relates to 'key aspects' of the strategy.