The term "apron" also refers to an item of clerical clothing, now largely obsolete, worn by Anglican bishops and archdeacons. The clerical apron resembles a short cassock reaching just above the knee, and is coloured black for archdeacons and purple for bishops. The apron is worn with black gaiters, reaching to just below the knee, and black trousers tucked in the gaiters. The history behind the vesture is that it symbolically represents the mobility of bishops and archdeacons, who at one time would ride horses to visit various parts of a diocese or archdeaconry. In this sense, the apparel was much more practical than a clerical cassock would be. In latter years, this vesture was more symbolic than practical, and since the mid-twentieth century it has fallen out of favour.
The term is further used more generally to refer to an expanse surrounding some object; for example, an airport can have a concrete "apron" around it, where planes and other vehicles can move about. The flexible lower container of the air cushion of a hovercraft is also called an apron or skirt.
An apron is another term for linkspan, and is used as a ramp to connect shoreside facilities with a barge or ferry at a ferry slip.
An apron stage is any part of a stage that extends past the proscenium arch and into the audience or seating area.
An apron of a racetrack is the part going around the track below the yellow line.
