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

aposentar-se

verbo

full

retire

verb

Definitions of retire

to stop work permanently, especially because you have reached a certain age

The proposals would allow firefighters to retire at the age of 55.

to make an employee stop working permanently

The Age Regulations permitted employers to retire their employees at 65.

to stop doing an activity permanently, especially an activity with which you are closely associated or carry out regularly

Eccles announced his intention to retire from darts after his defeat in the quarter-finals.