A chancel screen is a decorative or functional partition dividing the chancel area from the nave of a church or cathedral. Many different synonyms exist for the term "chancel screen", some of which include rood screen, choir screen, sanctuary screen, and altar screen. Each synonym carries its unique connotations and etymological roots, some of which are derived from Latin and Middle English. Regardless of the specific synonym used, all of these terms refer to the same fundamental architectural feature of sacred spaces, acting as a boundary between earthly and divine realms and adding intricacy and grandeur to the overall design of places of worship.