| hanging wall | |
| —n | |
| Compare footwall the rocks on the upper side of an inclined fault plane or mineral vein | |
| a screen or mat covered with a dark material for shielding a camera lens from excess light or glare. |
| a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question. |