Longman Dictionary English From Longman Dictionary of Contemporary EnglishRelated topics: Letters & punctuationumlautum‧laut /ˈʊmlaʊt/ noun [countable] SLAa sign (¨) written over a German vowel to show how it is pronouncedOrigin umlaut (1800-1900) German um- “around, changing” + laut “sound” ldoceonline.com
