an extraordinary or unusual thing, person, or event; an exceptional example or instance.
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.
also billet doux, 1670s, "love letter," from Fr., lit. "sweet note," from billet "document, note" (dim. of bille; see bill (1)) + doux "sweet," from L. dulcis (see dulcet).