faden
Faden is a German noun meaning thread, filament, or strand. It denotes a slender, flexible line or material and is used in both everyday language and specialized terminology. The plural form is Fäden.
Textiles and crafts: In sewing and textiles, Faden occurs in compound terms such as Nähfaden (sewing thread).
Science and engineering: In lighting technology, Glühfaden refers to the filament of an incandescent lamp. In
Biology and medicine: German scientific language uses Faden to denote thread-like forms, including filaments in cells
Language and culture: Metaphorically, Faden can denote a storyline or line of argument—the “thread” of a narrative
Names and places: Faden also appears as a surname in German-speaking areas and may occur in place