Umlaut definition

The diacritic mark (¨) placed over a vowel to indicate an umlaut, especially in German.

To write or print (a vowel) with an umlaut.

A change in a vowel sound caused by partial assimilation especially to a vowel or semivowel occurring in the following syllable.

A vowel sound changed in this manner.

To modify by umlaut.

The diacritical mark (¨) placed over a vowel, esp. in German, to indicate umlaut.

A historical change in the sound of a vowel, caused by its assimilation to another vowel or semivowel originally occurring in the next syllable but later sometimes lost; mutation: in English, the differences of vowel in certain singulars and plurals (Ex.: foot—feet, mouse—mice) or in certain causative verbs and the words from which they are derived (Ex.: gold—gild) are due to the effects of umlaut on the second word of each pair.

A vowel resulting from such assimilation.

(linguistics) A vowel so assimilated.

To place an umlaut over a vowel.

To modify the sound of (a vowel) or write (a vowel) with an umlaut.