Oklahoma City, the capital of the state of Oklahoma, is a vibrant and bustling city that has many synonyms. Some of the commonly used synonyms for Oklahoma City include OKC, The Big Friendly, The Heart of Oklahoma, The Sooner City, and The Bricktown City. The nickname "OKC" has gained popularity in recent times and is often used interchangeably with Oklahoma City. Another popular synonym for the city is "The Heart of Oklahoma," which signifies the city's pivotal role in the state's development. "The Sooner City," on the other hand, refers to the city's earliest settlers, who were known as "Sooners." Overall, Oklahoma City is a thriving city with a rich history and many names that reflect its unique character.