This is the 11142nd most frequent Russian word.
гостевая
"Гостевая" means "guest room" or "guest space" in English.
Here, 'гостевая' is used as an adjective describing the type of match, indicating it was held at another team's location.
Это была гостевая встреча нашей команды.
It was a guest match for our team.
In this sentence, 'гостевая' modifies 'room', signifying that this room is intended for guests.
Мы подготовили гостевую комнату для наших друзей.
We prepared the guest room for our friends.
The word 'гостевая' here describes the platform, suggesting it is a hosting or guest-focused one.