How do I know the gender of a German compound noun?

Look at the last word of the compound. Its gender determines the gender of the whole noun, so Haustür is die Haustür because Tür is feminine.

Why do some compound nouns have an extra -s, -n, or -en in the middle?

These linking sounds are called Fugenlaute . They help the compound sound more natural and are often used for smooth pronunciation, like Geburtstag or Studentenwohnheim .

How do I break down a long German compound noun?

Split it into smaller words from right to left and identify the final noun first. The last part gives the main meaning and the gender, while the earlier parts describe it, like Staub + Sauger = Staubsauger .

Compound Nouns — Can It Get Longer? 🌭📏

German is famous for combining multiple words into long compound nouns. The golden rule is simple: the grammatical gender and the plural form of a compound noun are always determined by its very last word. For example, das Haus + die Tür = die Haustür.

Infographic illustrating German Compound Nouns and the rule that the last word determines the gender.

One of the superpowers of the German language is the ability to glue words together to create monster words.
In English, you say "The key for the door of the house."
In German, we say House-door-key (Haustürschlüssel). Efficiency! ⚡

The Golden Rule: The Last Part Wins! 🏆

You might be panicking: "If I combine three words, which gender do I use?"
Don't panic. The rule is simple: The LAST word determines the gender.

die Donau (Danube river)
der Dampf (steam)
die Schifffahrt (shipping)
die Gesellschaft (company)
der Kapitän (captain)

Result: der Donaudampfschifffahrtsgesellschaftskapitän
Because the Last Word (Kapitän) is masculin (der), the entire word is masculin. The rest is just "adjectives" describing what kind of captain he is.

Examples 🧩

Part 1	Part 2	Result	Meaning
der Tisch	das Bein	das Tischbein	Table leg
die Orange	der Saft	der Orangensaft	Orange juice
das Haus	die Tür	die Haustür	Front door
die Hand	der Schuh	der Handschuh	Glove (Hand-shoe!)

The Glue: Fugen-s and n 🔗

Sometimes you can't just smash words together; you need a little glue to make it sound nice.
This is often an -s, -n, or -en.

Liebe + Brief = liebesbrief? No ➔ Liebesbrief (Love letter).
Geburt + Tag = Geburtstag (Birthday).
Student + Wohnheim = Studentenwohnheim (Student dorm).

[!TIP]
There are complex rules for when to use which glue (Fugen-laut), but honestly? It's often just about what sounds smoother. If you say Geburttag, you stumble. Geburtstag flows.

Funny Compounds 😂

German is literal.

Slug = Nacktschnecke (Naked snail). 🐌
Plane = Flugzeug (Fly-thing). ✈️
Lighter = Feuerzeug (Fire-thing). 🔥
Tortoise = Schildkröte (Shield-toad). 🐢

Challenge: Guess the Meaning 🧠

Try to break these down!

Handschuhschneeballwerfer
- Hand + Schuh (Glove) + Schnee (Snow) + Ball (Ball) + Werfer (Thrower).
- = Someone who throws snowballs while wearing gloves.
Kühlschrank
- Kühl (Cool) + Schrank (Cupboard).
- = Fridge!
Staubsauger
- Staub (Dust) + Sauger (Sucker).
- = Vacuum Cleaner.