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Umlauts and ß — German Special Characters

How to read, write and use the German umlaut letters ä, ö, ü and the Eszett ß.

Last updated: 3 December 2025

★☆☆☆☆ Level 1germanGrammarSpellingumlautseszettpronunciation4 min read

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The German special characters

German has four letters not found in English:

LetterNameSounds like
äa-Umlautsimilar to "e" in bed
öo-Umlautsimilar to French eu or "i" in bird (without the r)
üu-Umlautsimilar to French u — round your lips for "oo" but say "ee"
ßEszett / scharfes Slike "ss" — a sharp s sound

When do umlauts appear?

Umlauts often arise from vowel modification (Umlaut) in grammar:

ContextExample
Some noun pluralsder Apfel → die Äpfel
Stem-changing verbsfahren → er fährt
Comparative of adjectivesalt → älter
Possessive with umlautVater → väterlich

ß vs ss

Both sound like "ss". German uses ß after a long vowel or diphthong, and ss after a short vowel:

ß (after long vowel/diphthong)ss (after short vowel)
die Straße (the street)der Fluss (the river)
heißen (to be called)wissen (to know)
groß (big) — long oessen (to eat) — short e
schießen (to shoot)küssen (to kiss) — short ü
Note In Switzerland and Liechtenstein, ß is not used at all — they always write ss. So Straße becomes Strasse.

Capital letters — no ß

ß has no uppercase form traditionally (a capital ẞ exists but is rarely used). Capitalize ß as SS:

  • die Straße → die STRASSE
  • heißen → HEISSEN

Typing umlauts when no special keyboard is available

CharacterSubstitute
äae
öoe
üue
ßss

So schön can be written schoen, and Straße becomes Strasse.

Real world: German product names and menus

German menus are full of umlaut nouns: „Würstchen €2,50", „Brötchen €1,00", „Käseplatte €8,00" — Würstchen (little sausage), Brötchen (bread roll), Käse (cheese) all contain umlauts. Getting the pronunciation right (ü, ö, ä) instantly sounds more authentic.

Real world: verb forms in transport announcements

Train announcements use strong verbs with umlauts: „Zug fährt auf Gleis 3 ein." (Train arriving at platform 3 — fahren → fährt) „Der Zug hält an allen Stationen." (halten → hält) These announcements are heard at every German station, and the umlaut vowel change is crucial.

Real world: street names and city signs

Many German street names and place names contain umlauts: „Göthestraße", „Schillerplatz", „Münster", „Düsseldorf", „Köln". Typing or writing these correctly matters — replacing ü with u or ö with o produces a completely different word or unrecognizable name.

Tip

If you cannot type umlauts on your keyboard, use the standard substitutes: ä → ae, ö → oe, ü → ue, ß → ss. So Müller becomes Mueller and Straße becomes Strasse. This is officially accepted in Germany for situations where special characters are unavailable.

Practice Problems

Plural of der Apfel — add umlaut

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die Äpfel

ß or ss? Das Wa__er ist kalt. (water — long a in base)

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Wasser uses ss — Das Wasser (short vowel)

ß or ss? Er hei__t Thomas.

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ß — Er heißt Thomas (diphthong ei → ß)

What is the substitute typing for: schön?

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schoen

Capitalize: die Straße → DIE ____

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DIE STRASSE