Istanbul Turkish is a dialect of the Turkish language primarily spoken in Istanbul, Turkey's largest city. It serves as a standard form of Turkish and is influenced by the city's diverse cultural and historical background. This dialect incorporates vocabulary and expressions from various languages due to the city's rich history as a crossroads of civilizations. The grammar and pronunciation of Istanbul Turkish are similar to other Turkish dialects, but it often features unique slang and idiomatic expressions. As the cultural and economic hub of Turkey, Istanbul plays a significant role in shaping the modern Turkish language and its evolution.