n (a) [U] (in Germanic languages) vowel change in related forms of a word, shown by two dots over the vowel in one of them, eg der Mann/die Manner (= the man/the men) in German （日耳曼语系中的）元音变化（在元音上加两点作为标志, 如德语中的 der Mann/die Manner）. (b) [C] sign (consistingof two dots) that shows this 变音符（标示上述元音变化的两点）. Cf 参看 diaeresis.
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