This is the 12178th most frequent Portuguese word.
respetivos
"Respetivos" (correct spelling: "respectivos") means "respective" in English.
In this sentence, 'respectivos' is used to refer to the teachers corresponding to each student.
Os alunos entregaram as tarefas aos respectivos professores.
The students handed in the assignments to their respective teachers.
Here, 'respectivos' indicates that each property was sold to the owner it belonged to.
Os imóveis foram vendidos a seus respectivos proprietários.
The properties were sold to their respective owners.
In this case, 'respectivos' establishes a relation between the keys and the rooms they correspond to.