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ASCII World

Diaeresis

How Diaeresis works

The diaeresis (ยจ) - two dots above a vowel - has two distinct functions depending on the language. In German, it marks an umlaut: "a" (with diaeresis) is a different vowel from "a", changing pronunciation and meaning ("schon" means "already" but "schon" means "beautiful"). In French, it signals that two adjacent vowels are pronounced separately: "naive" is three syllables, not two.

Though visually identical, the German umlaut and the French diaeresis are considered different uses in Unicode, though they share the same combining character (U+0308). ISO-8859-1 includes pre-composed diaeresis vowels at codes 196, 203, 207, 214, 220 (uppercase) and 228, 235, 239, 246, 252 (lowercase). Browse them in our diaeresis character group.

References

Related Terms