German orthography
Compound words, including nouns, are written together, e.g. "Haustür" (Haus+Tür; house door), "Tischlampe" (Tisch+Lampe; table lamp), "Kaltwasserhahn" (Kalt+Wasser+Hahn; cold water tap/faucet). This can lead to long words: the longest word in regular use, "Rechtsschutzversicherungsgesellschaften" ("legal protection insurance companies"), consists of 39 letters; while the longest German word ever published ("Donaudampfschiffahrtselektrizitätenhauptbetriebswerkbauunterbeamtengesellschaft", "Association for subordinate officials of the head office management of the Danube steamboat electrical services") has 79 letters.
German language
Written texts in German are easily recognisable as such by distinguishing features such as umlauts and certain orthographical features – German is the only major language that capitalizes all nouns, a relic of a widespread practice in Northern Europe in the early modern era (including English for a while, in the 1700s) – and the frequent occurrence of long compounds. The longest German word that has been published is made of 79 characters. Because legibility and convenience set certain boundaries, compounds consisting of more than three or four nouns are almost exclusively found in humorous contexts. (In contrast, although English can also string nouns together, it usually separates the nouns with spaces. For example, "toilet bowl cleaner".)