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 scrap or morsel of food left at a meal.
a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.
early 19c., "backsight of a firearm," from hind (adj.) + sight. Meaning "seeing what has happened" is from 1883, probably formed on model of foresight.