This is the 1457th most frequent Polish word.
świadków
"Świadków" means "witnesses" in English.
Here, 'świadków' refers to wedding witnesses, which is a customary role in Polish weddings where witnesses play a part in the ceremony.
Na weselu było wielu świadków.
There were many witnesses at the wedding.
In this context, 'świadków' means witnesses to an event, specifically people providing information about what they have observed.
Policja zapytała świadków zdarzenia o szczegóły.
The police asked the witnesses of the event for details.
In this usage, 'świadków' refers to legal witnesses, people providing testimony in a legal context.