This is the 8053rd most frequent Portuguese word.
semana
"Semana" means "week" in English.
In this sentence, 'semana' refers to the workdays typically considered Monday through Friday.
Eu trabalho durante a semana e descanso nos finais de semana.
I work during the week and rest on weekends.
Here, 'semana' denotes a specific seven-day period in the past.
A semana passada foi muito produtiva para o nosso projeto.
Last week was very productive for our project.
In this use, 'semana' represents the current or ongoing seven-day period.