乃是 Traditional form: 乃是 Pinyin (reading): nǎishì Definitions: equivalent to either 是 (shì) or 就是 (jiùshì) Characters: 乃 - then; really, indeed, after all 是 - to be; indeed, right, yes; okay Traditional characters: 乃 - then; really, indeed, after all 是 - to be; indeed, right, yes; okay