A yard is a unit of measurement commonly used in the United States and other countries that follow the imperial system. One yard is equal to 3 feet or 36 inches. It is often used to measure lengths, such as the dimensions of a room or the height of a person. In addition to being a unit of measurement, a yard can also refer to an outdoor area surrounding a house, often used for gardening or recreation. This space may include grass, plants, and sometimes structures like fences or patios, providing a place for relaxation and outdoor activities.