A plug-in optional circuit card for an IBM PC. It provides high-quality stereo sound output under program control. A "multimedia" PC usually includes a sound card. One of the best known is the Sound Blaster. [Other kinds?] (1995-03-01)
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.
the offspring of a zebra and a donkey.
an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.