The term 'courtyard tile' refers to a type of paving material used to create outdoor spaces. The crossword solution for this term is 'paver, ' which is a flat stone, brick, or concrete block used to create a hard surface in an outdoor area. Pavers are often used to create pathways, patios, and driveways, as well as courtyards. They are available in a variety of shapes, sizes, and colors, making them a popular choice for landscaping projects.