There are many synonyms for the word "bread-type roll." Some common ones include bun, roll, bagel, croissant, naan, pita, and focaccia. Buns are typically small and round, often used for burgers or sandwiches. Rolls can be larger and more oblong, and may be sweet or savory. Bagels are dense and chewy, often topped with seeds or spices. Croissants are flaky and buttery, often filled with sweet or savory ingredients. Naan is a flatbread often used in Indian cuisine. Pita is a round, pocketed bread used for sandwiches or for dipping in hummus or tzatziki. Focaccia is a flat, herbed bread that is often topped with cheese or vegetables.