a telephone service feature whereby a person engaged in a telephone call is notified by a tone that a second call is being made to the same number, and is able to talk to either party while keeping the other on hold.
a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.
a gadget; dingus; thingumbob.
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.