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. Similarly, the Great Wall of China is often considered the largest man-made structure, stretching over 13,000 miles. In terms of animals, the blue whale holds the title for the largest animal ever known to exist, reaching lengths of up to 100 feet and weighing as much as 200 tons. In the plant kingdom, the giant sequoia is one of the largest trees, with some individuals exceeding 300 feet in height.