The crossword solution for the term 'Turkey Neighbour' is IRAN, which is a four-letter word. IRAN is a country located in the Middle East, bordered by Turkey to the northwest, Iraq to the west, Armenia, Azerbaijan, and Turkmenistan to the north, Afghanistan and Pakistan to the east, and the Persian Gulf and the Gulf of Oman to the south. It is the 18th largest country in the world and has a population of over 82 million people.