Rood arch is a term used to describe the arch or framework over an altar that supports a rood or crucifix. There are many synonyms for this term, including chancel arch, triumphal arch, rood-screen arch, and sanctus-bell arch. Each of these terms refers to a similar architectural element in Christian churches, but may have slightly different connotations or historical associations. Some other related terms include nave arch, crossing arch, and transept arch, which are also architectural features commonly found in churches. Despite their nuanced differences, these terms all refer to arches or frameworks that play an important role in the religious symbolism and layout of Christian worship spaces.