| NSF or banking N/S/F | |
| —abbreviation for | |
| not sufficient funds | |
| N/S/F or banking N/S/F | |
| —abbreviation for | |
| 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. |
| a screen or mat covered with a dark material for shielding a camera lens from excess light or glare. |