"An unspecified physical object, a widget. Also refers to electronic black boxes. This rare form is usually abbreviated to "frotz", or more commonly to frob. Also used are "frobnule" (/frob'nyool/) and "frobule" (/frob'yool/). Starting perhaps in 1979, "frobozz" /fr*-boz'/ (plural: "frobbotzim" /fr*-bot'zm/) has also become very popular, largely through its exposure as a name via Zork. These variants can also be applied to nonphysical objects, such as data structures."