felhívásaival
The Hungarian word "felhívásaival" is the instrumental plural form of "felhívás." A "felhívás" can translate to several English terms depending on the context, including appeal, call, invitation, or summons. Therefore, "felhívásaival" refers to "with its/their appeals," "with its/their calls," "with its/their invitations," or "with its/their summonses."
In practice, the meaning is derived from the preceding noun or pronoun that "felhívásaival" modifies. For instance,