| a screen or mat covered with a dark material for shielding a camera lens from excess light or glare. |
| an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle. |
skeptic (ˈskɛptɪk) ![]() | |
| —n, —adj | |
| an archaic, and the usual US, spelling of sceptic | |
| 'skeptical | |
| —adj | |
| 'skeptically | |
| —adv | |
| 'skepticalness | |
| —n | |
| 'skepticism | |
| —n | |
In philosophy, the position that what cannot be proved by reason should not be believed. One of the main tasks of epistemology is to find an answer to the charge of some extreme skeptics that no knowledge is possible.