entrench (oneself) in a position

Translations
укрепиться в позиции
The manager entrenched himself in a position of power within the company.
Менеджер укрепился в позиции власти в компании.
Definitions
To firmly establish oneself in a particular position or viewpoint, often making it difficult to change or move from that stance.
Words
entrench

verb
укрепиться
oneself

pronoun
себя
in

preposition
в
a

article or possessive pronoun
один
position

noun
положение