Definition: 1. Vdi is a Japanese language term that represents the phonetic principle of vowel harmony.<0x0A>2. Vdii is the sound produced by inserting or sliding a pen between two vowels.<0x0A><0x0A>Sentence 1: Vdii is an example of VDI, where vowel harmony is expressed through sliding a pen between vowels.<0x0A><0x0A>Sentence 2: Vdii can be heard as the sound produced when inserting or sliding a pen between the vowels in a word.
vdi