Meaning of “administration” - Learner’s Dictionary

administration

noun uk us /ədˌmɪnɪˈstreɪʃən/
ORGANIZING [ U ]

the work of organizing and arranging the operation of something, such as a company:

The job involves a lot of administration.
GOVERNMENT [ C ] mainly US

the President and politicians who govern a country at a particular time, or a period of government:

the Obama administration

(Definition of “administration” from the Cambridge Learner’s Dictionary © Cambridge University Press)