◌̈

Diacritical mark

 * 1)  The second time-differential. E.g. x (position), ẋ (velocity), ẍ (acceleration).
 * 2)  A centralized vowel.
 * 3)  A front rounded vowel (e.g. ü ö ɔ̈) or a back unrounded vowel (e.g. ï ë ɛ̈).
 * 4)  Greater rounding of a vowel.
 * Diacritic may be doubled for more rounding: ⟨ë̈⟩.
 * 1)  Used with the letter $⟨ẗ⟩$ to transcribe Arabic $⟨⟩$.
 * 2)  Used to indicate that the payments occur at the beginning of a period.

Usage notes
The spacing character U+00A8 is retained for compatibility with pre-Unicode encodings. It is equivalent to ◌̈ docked to a space, U+0020 (i.e. ⟨̈⟩), and there is no need for it in modern typography except to refer to itself.

Usage notes
This diacritic is called a (or ),, or – strictly speaking for German and similar orthographies –.

In all such cases apart from family names, usage is optional. For German loans, there is the additional option of replacing the umlaut with a digraph in e, e.g. Fuehrer.

$⟨◌́⟩$ is more commonly used to indicate that a final e is pronounced, e.g. animé, but in the case of a name like Chloe that might imply the wrong stress or vowel quality (e.g. spurious "kloh-AY" rather than "KLOH-ee").

Diacritical mark

 * 1) Used with the letter $⟨e⟩$ to make $⟨⟩$, which transcribes the sound

Diacritical mark

 * 1)  It is also known by the names  or . It was used to indicate that the vowel letter  or  formed a separate syllable rather than a diphthong when written after another vowel letter.

Usage notes
The diaeresis is used to indicate that two vowels are to be pronounced separately as two syllables, rather than as a diphthong or single vowel. For example, geïnd (collected), reëel (realistic), zeeën (seas). In compound words, a hyphen - is used between the syllables instead. The same occurs when a word is hyphenated at the end of a line of print, e.g. ge-ind, re-eel, zee-en for the previous.

The umlaut is used only in words of German origin, such as.

Diacritical mark

 * 1) A diacritical mark of the Greek script, called διαλυτικά  in Greek, and found on  ί/ΐ/ϋ.

Usage notes

 * Formerly used, in the letter, formed , in the syllables qüe, qüi, güe and güi. In these syllables, the letter u without a trema would be silent; with the trema it would have the sound of the semivowel.

Diacritical mark

 * 1)  Indicate that the 'u' is pronounced between a 'c' or 'g' and a vowel 'e' or 'i', as in Malagüez.

Diacritical mark

 * : centralized vowel