ablaut

ablaut has 2 senses in the JumbleFix dictionary. Letters: 6.

Definitions

• n.. The substitution of one root vowel for another, thus indicating a corresponding modification of use or meaning; vowel permutation; as, get, gat, got; sing, song; hang, hung.
• n.. a vowel whose quality or length is changed to indicate linguistic distinctions (such as sing sang sung song)