The term "largest" refers to the greatest size, extent, or capacity of an object or entity compared to others in a specific category. For example, the Pacific Ocean is the largest ocean on Earth, covering more than 63 million square miles. In terms of land animals, the blue whale holds the title of the largest animal, reaching lengths of up to 100 feet. In various contexts, "largest" can apply to different subjects, such as populations, structures, or quantities. The Great Wall of China is often cited as the largest man-made structure, stretching over 13,000 miles. Similarly, the Amazon Rainforest is the largest tropical rainforest, home to an immense variety of plant and animal species.