This is the 510th most frequent Polish word.
gości
"Gości" means "guests" or "is hosting" (depending on context).
In this context, 'gości' refers to 'guests' as individuals who visit someone.
Wczoraj odwiedziły nas gości.
Yesterday, guests visited us.
In this case, 'gości' is a verb form meaning 'hosts,' referring to accommodating or receiving visitors.
Miasto gości wielu turystów każdego roku.
The city hosts many tourists each year.
Here, 'gości' is used as the plural form of 'guest,' referring to attendees of an event.