A simple cupboard dating from medieval times. Originally the aumbry, ambrey or almery consisted of a recessed shelved area in a wall enclosed by wooden doors, and later developed into a freestanding cupboard fir storing food, with pierced ventilation holes in the doors, which was used until the 16thC.
A receptacle made either in the wall or attached to the wall of the chancel or sacristy to contain the consecrated elements, holy oils, or sacred vessels; or a locked cupboard for storing altar books, vestments, or sacred vessels.
A small cabinet for storing consecrated bread and wine (and holy oil). Normally, there is a candle nearby, signifying the presence of Christ in the sacrament. When this cabinet is physically attached to an altar, it is referred to as a tabernacle.
In mediaeval times, an aumbry was a cupboard in the wall of a Christian church or in the sacristy which was used to store chalices and other vessels and which was used also for the reserved sacrament, the consecrated elements from the communion service. This was an uncommon usage in pre-Reformation churches, (though it was known in Scotland, Sweden, Germany and Italy). More usually the sacrament was reserved in a pyx usually hanging in front of and above the altar or later in a sacrament house.