How to Say "week" in Spanish
The Spanish word for “week” is “semana” — A1 level. This is a very common word in everyday Spanish.

Examples
¿Qué planes tienes para esta semana?
What plans do you have for this week?
La semana que viene voy de vacaciones.
Next week I'm going on vacation.
Trabajo cinco días a la semana.
I work five days a week.
Always Feminine: 'la semana'
Remember that 'semana' is a feminine word, so you'll always use feminine words like 'la', 'una', or 'esta' with it. For example, 'la semana pasada' (last week).
Talking About 'Next' and 'Last' Week
To say 'next week', you can use 'la semana que viene' or 'la próxima semana'. They mean the same thing. For 'last week', you'll always use 'la semana pasada'.
Using 'en la semana'
Mistake: “Voy al cine en la semana.”
Correction: To talk about this specific week, say: 'Voy al cine esta semana'. If you mean 'on weekdays' in general, use 'entre semana' or 'durante la semana'.
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