There are multiple definitions - click on the translation that matches your context.

administração

substantivo

full

administration

noun

Definitions of administration

the collection and distribution of a deceased's (=dead person's) assets

I have now completed the administration of the deceased's estate (=all possessions of dead person).

a period of government in the United States, defined by the term of the president; the officials in the executive branch of government under a particular president (eg the Obama administration)

These are the final days of the current administration.

the action of running a business or organisation etc

I deal with the day to day administration of our human resources department.