This is the 112th most frequent Polish word.
środę
The Polish word "środę" means "Wednesday" in English (accusative or singular form of "środa").
The word 'środę' functions as a time reference, specifically indicating the day Wednesday in the accusative case, which is used here because the sentence involves a specific time indicated for an activity.
W środę mam wizytę u lekarza.
On Wednesday, I have a doctor's appointment.
Similar to the first sentence, 'środę' is used as a time reference, in the accusative case, indicating the day Wednesday in relation to the planned action.
Spotkajmy się w środę po południu.
Let's meet on Wednesday afternoon.
Here, 'środę' is part of the phrase 'każdą środę', which specifies a recurring action happening on Wednesdays, using the word in the accusative singular form and adapting it with the quantifier 'każdą' (every).