Complex sentence: Pronounced "Keereeth Oongoll", the name is Sindarin for "Spider's Cleft"; it is the pass through the western mountains of Mordor and the only way towards the land from the West.
Split into simpler sentences: Pronounced "Keereeth Oongoll", the name is Sindarin for "Spider's Cleft". Cirith Ungol is the name of the pass through the western mountains of Mordor and the only way towards the land from the West.