What is another word for Cill?
Pronunciation: [sˈɪl] (IPA) 
Cill is a term commonly used in the United Kingdom and Ireland to refer to the space between the jambs of a doorway or the recess of a window. Synonyms for cill include threshold, sill, threshold stone, lintel, and jamb. In architectural terms, it is an important structural component as it provides support for the superstructure and prevents water from entering the building. The term cill is often used in historical buildings and traditional construction methods. In modern construction, the term sill is more commonly used. Whatever the terminology, it is a crucial element in a building's design and construction.
