This is the 662nd most frequent Portuguese word.
manutenção
Maintenance.
Here, 'manutenção' stands for 'maintenance' in the sense of repairing or improving technical or infrastructural systems.
Eles estão fazendo manutenção na rede elétrica do bairro.
They are performing maintenance on the neighborhood's electrical network.
In this example, 'manutenção' means 'maintenance' as in the regular updates or care needed for software to work well.
O software requer manutenção periódica para continuar funcionando corretamente.
The software requires periodic maintenance to continue functioning correctly.
In this sentence, 'manutenção' refers to 'maintenance' as in the process of keeping something in good working condition, specifically a car.