Linking -s- (Fugen-s)
Very common after feminine suffixes (-ung, -heit, -keit, -schaft, -tion, -tät) and many masculine/neuter nouns.
Paste any long German compound word (Kompositum) to split it into individual stems, inspect linking letters (Fugenelemente like -s-, -n-, -er-), and see why the final noun sets the gender.
krank
sick / patient
das Haus
house
The final element (Grundwort) "das Haus" determines the compound's gender (neuter → das) and plural, while "krank" narrows the meaning.
Very common after feminine suffixes (-ung, -heit, -keit, -schaft, -tion, -tät) and many masculine/neuter nouns.
Genitive-style linker used mainly after short one-syllable masculine/neuter stems for smoother rhythm.
Often appears after feminine nouns ending in -e or weak/plural noun stems.
Connects plural-form modifiers such as Wörter, Bücher, Kinder, Häuser to the head noun.
Inherited from mixed/weak genitives such as Herzens, Namens, Friedens.
The two stems join directly without an extra sound, sometimes dropping a final -e (Schule → Schulbuch).
In German, compound nouns always read from right to left for grammar. The very last noun (das Grundwort / head noun) decides the article, grammatical gender, and plural form of the entire word: der Schuh + die Größe = die Schuhgröße; die Woche + das Ende = das Wochenende.
Fugenelemente (linking sounds) are small consonants or syllables inserted between compound stems to help pronunciation flow — similar to "sportsman" in English. Common German linkers are -s- (Arbeitsplatz, Geburtstag), -n-/-en- (Straßenbahn, Wochenende), and -er- (Wörterbuch).
Yes! German freely builds multi-part compounds such as Haustürschlüssel (Haus + Tür + Schlüssel) or Straßenbahnhaltestelle (Straßen + Bahn + Halte + Stelle). Everything before the final noun narrows down the meaning like stacked adjectives or prepositional phrases in English.
Yes. Unlike English ("train station", "bus stop"), standard German writes closed compounds as one capitalized word (Bahnhof, Bushaltestelle). Hyphens are only added when spelling clarity is needed (E-Mail, Kaffee-Ersatz) or with abbreviations and numbers (U-Bahn, 2-Zimmer-Wohnung).