This is the 14504th most frequent Turkish word.
paketleyen
"One who packs" or "the person packing."
Here, 'paketleyen' is a present participle derived from 'paketlemek' (to package), used as an adjective to describe the person performing the action of packaging.
Paketleyen kişi tüm kutuları dikkatlice etiketliyor.
The person who is packaging labels all the boxes carefully.
In this sentence, 'paketleyen' functions as a present relative clause verb describing the subject (the machine).
Bu tesis, en kaliteli ürünleri paketleyen bir otomatik makineye sahiptir.
This facility has an automated machine which packages the highest quality products.
Here, 'paketleyen' acts as a noun formed from the verb 'paketlemek', referring to the individuals doing the act of packaging.