Gable: Triangular end part of a ridged roof

Galilee: Porch attached to the west end of the church

Gallery: A Long narrow room, or a hallway

Garderobe: Toilets that empty into a stream or simply outside the walls; toilets outside the building

Gargoyle: Carved ornaments designed to carry rain water away from the side of buildings

Garth: An enclosed garden. Usually in cloisters

Gatehouse: A tower defending an entrance

Gothic: Period of architecture from the twelfth to the fifteenth century. Early English and Decorated styles are included in this time period

Groin: The edge of intersecting vaults

Hall: The main building used for domestic life

Haunch: Part of an arch between it's pillar and highest point

Herringbone: Affect of placing masonry inclined alternately to the left and right

Hoarding: Brattices or Breteche; Wooden boards fitted to top of wall used as extra protection for defenders

Impost: The moulded high point of a pillar from which the arch springs

Infirmary: A hospital for sick monks. The Infirmary usually had a cloister of its own

Intersecting tracery: In windows where mullions split in Y shapes to form smaller arches

Intrados: The underside of an arch