| Gatepier | |
| Stone gate post usually placed either side of a drive | |
| Gazebo | |
| A turret or balcony providing a view or a small building overlooking a view | |
| Gig mill | |
| A teazle raising machine for raising the nap on a woollen cloth | |
| Gneiss | |
| Generally a coarse grained banded crystalline metamorphic rock which has been subject to high temperatures and pressures. | |
| Gothic | |
| A pointed arch style of architecture both medieval and Victorian | |
| Gothick | |
| the use of pointed-arch forms in Georgian times used for decorative and mood effects | |
| Grist | |
| Corn for grinding | |
| Hammerbeam | |
| Projection from wall at foot of principal rafter | |
| Hipped roof | |
| A roof with ends as well as sides inclined | |
| Indigenous (or First) Peoples | |
|
The people who first lived in North America. Europeans called them 'Indians' at first because they had darker skin and because the Europeans thought that they had reached India. |
|
| Industrialising | |
| Developing industry on an extensive scale. | |
| Ionic | |
| An order of proportions of columns and entablature of Greek origin | |
| Italianate | |
| Having an Italian style or appearance | |
| Jacobethan (Jacobean) | |
| A style of architecture developed during James I reign | |
| Kerseymeres | |
| A twilled fine woollen cloth simulating cashmere | |
