Apparate

nominative/accusative/genitive plural of Apparat

(masculine, strong) apparatus, device, machine (complex instrument)
(masculine, strong) apparat, apparatus (organisation, especially bureaucratic)
(masculine, strong) the entirety of an editor's critical notes to a text, (loosely also) other appended information, such as indices etc.
(abbreviation, alt-of, dated, masculine, strong) short for Telefonapparat (“telephone”)