This is the 12231st most frequent Spanish word.
jubila
"Jubila" is a conjugated form of the verb "jubilar," meaning "he/she/it retires" or "you (formal) retire."
In this sentence, 'jubila' is part of the reflexive verb 'jubilarse,' meaning 'to retire.' It is used to indicate that the subject (my grandfather) will enter retirement.
Mi abuelo se jubila el próximo mes.
My grandfather is retiring next month.
Here, 'jubila' appears in a non-reflexive form, used transitively to indicate that the company is the agent initiating the retirement process for its employees.
La empresa jubila a sus empleados al cumplir treinta años de servicio.
The company retires its employees after completing thirty years of service.
This sentence employs 'jubila' in the reflexive form to denote the action of retirement happening to an unspecified subject (someone).