mural
n. countable B2 Upper Intermediate US //ˈmjʊɹəɫ// UK //mjˈʊɹəl// mu·ral
n. a large painting that is made directly on a wall or ceiling. You often see them on the sides of buildings in cities.
n. a large-scale artwork applied directly to a wall, ceiling, or other permanent surface. Often integrated into the architectural space it occupies.
The artist is painting a colorful mural on the school wall.
The city commissioned a local artist to paint a mural depicting the neighborhood's history on the side of the library.
While graffiti is often viewed as a nuisance, a well-executed mural can revitalize a neglected urban corridor and foster a sense of communal pride among residents.
Borrowed from French mural, from Latin muralis, from murus (“wall”).