What is another word for voussoir?
Pronunciation: [vˈa͡ʊswɑː] (IPA) 
Voussoir is a term used in architectural circles to describe a wedge-shaped stone used in creating the arches of buildings such as churches, bridges or other structures. Synonyms for voussoir include keyblock, wedge, archstone or springer. These terms essentially refer to the same thing, which is a structural element used to create intricate shapes in construction. The voussoir is an integral part of the arch and provides support for the entire structure. These synonyms for voussoir demonstrate the versatility and precise nature of architectural engineering, as even the smallest element has a specific name and function in the overall design.
