The second-largest country in the world is CANADA, which has six letters. CANADA is located in North America and is the world's second-largest country by total area. It is bordered by the United States to the south and northwest, and by the Arctic Ocean to the north. CANADA is a highly developed country with a strong economy and a high standard of living. It is home to a diverse population of over 37 million people, making it one of the most populous countries in the world.