ablaut
noun/ˈæblaʊt/
Frequency rank: #19,959 most common English word
Meaning
A systematic vowel change within a word to indicate grammatical function, common in Indo-European languages.

Example sentence
The teacher explained that the vowel change in 'sing, sang, sung' is an example of ablaut.
Synonyms & related words
- gradation
- alternation
- apophony
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