Synonyms for the word "arch ends" include phrases such as "arched tops," "curved edges," "rounded tips," and "bowed terminations." These synonyms all describe the same general shape and design of a rounded or arched edge, typically found on the ends of structures such as bridges, buildings, or archways. These features not only provide a sense of aesthetic beauty but also contribute to the overall structural integrity and durability of the design. Other potential synonyms for "arch ends" might include phrases such as "arcuate caps," "vaulted terminuses," "domed finials," or "crescent-shaped crowns," each with its own unique shade of meaning and nuance.