This is the 219th most frequent Turkish word.
il
"İl" in Turkish means "province."
In this sentence, 'il' is used as a noun meaning 'province' and refers to an administrative region in Turkey.
Ankara, Türkiye'nin başkenti ve büyük bir ildir.
Ankara is the capital and a major province of Turkey.
Here, 'il' still refers to a province or administrative area but is included in a possessive construction to indicate a trip associated with it.
Yeni bir il gezisi planlıyoruz.
We are planning a trip to a new province.
In this context, 'il' functions as an adjective, modifying 'press' to specify that it pertains to regional or provincial level media.