This is the 494th most frequent Czech word.
fanoušky
"Fanoušky" means "fans" in English.
Here 'fanoušky' is used in the accusative plural form to indicate the direct object of the verb 'přivítal', meaning the fans being welcomed.
Fotbalový klub přivítal své fanoušky na stadionu.
The football club welcomed its fans to the stadium.
In this sentence, 'fanoušky' takes the accusative plural form as it refers to the fans being directly affected by the verb 'oslovila' (addressed).
Na koncertě kapela oslovila své věrné fanoušky.
At the concert, the band addressed their loyal fans.
Here, 'fanouškům' is used in the dative plural form as it indicates the indirect object of 'poděkovali' (thanked), referring to the fans receiving gratitude.