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

Examples
Tenemos una reunión importante el miércoles por la mañana.
We have an important meeting on Wednesday morning.
Los miércoles siempre voy al gimnasio después del trabajo.
On Wednesdays, I always go to the gym after work.
El próximo miércoles cae en 15 de marzo.
Next Wednesday falls on March 15th.
Gender and Articles
Days of the week are always treated as masculine, so they use 'el' (the) or 'un' (a). We usually use 'el' when talking about a specific Wednesday.
Capitalization Rule
Unlike English, days of the week in Spanish are usually not capitalized unless they start a sentence.
Using 'en' for days
Mistake: “Voy en miércoles.”
Correction: Voy el miércoles. (Use 'el' instead of 'en' [on] when specifying the day of the week.)
Capitalizing the day
Mistake: “El Miércoles tengo clase.”
Correction: El miércoles tengo clase. (Keep the word lowercase.)
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